&EPA
United States
Environmental Protection
Agency
Office of Research and
Development
Washington. DC 20460
EPA/600/R-98/121A
September 1998
Blind-A Performance
Evaluation Study
A Statistical Evaluation
of the April 21, 1998 Data
006ECB98-12U
-------
Blind-A
Performance Evaluation Study
April 21, 1998
Environmental Protection Agency
National Exposure Research Laboratory
Environmental Sciences Division
Las Vegas, Nevada
-------
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
OFFICE OF RESEARCH AND DEVELOPMENT
NATIONAL EXPOSURE RESEARCH LABORATORY
ENVIRONMENTAL SCIENCES DIVISION-LAS VEGAS
P.O. BOX 93478
LAS VEGAS, NEVADA 89193-3478
(702/798-2100)
Dear Participant,
Enclosed are the results of the Environmental Sciences Division (ESD-LV)
Performance Evaluation Study for Blind-A; April 21, 1998.
The known value for each analysis was determined by gravimetric methods,
checked by chemical analyses performed by ESD-LV's Radiochemistry Laboratory,
and compared to the participating laboratories' grand average.
The expected precision, determined by the known value, was taken from
'Table 3. Laboratory Precision: One Standard Deviation Values and Control Limits
for Various Analyses", which is based on data accumulated over the years by the
Performance Evaluation Program, and can be found in the Environmental Radioactivity
Performance Evaluation Studies Program and Radioactive Standards Distribution
Program information brochure.
Please take a few minutes to review this report and the analytical data your
laboratory submitted to us. If there are any apparent discrepancies, please notify us
immediately.
We encourage you to make use of the computer-automated data-entry system
that has been in place for some time now. As the number of participants increases,
and it becomes unrealistic for us to receive results by mail or FAX, the computer
system will be our only avenue for accepting data.
If you have any questions or comments, please send a message via the data-entry
system or contact Stephen Pia at 702/798-2102 or Patricia Honsa at 702/798-2141.
Sincerely,
Stephen Pia
Team Leader
RADQA Program
Enclosure
-------
NOTICE
This material has been funded wholly by
the U.S. Environmental Protection Agency.
It has been subjected to the Agency's review,
and has been approved for publication as
an EPA document.
-------
ESD-LV Performance Evaluation: Blind-A, 21-Apr-1998 1/30
The following pages consist of separate sections for each of the nuclides in this study with four
parts per section. After the first, each part is separated from the next by a new page or a thick
horizontal bar. The first page of each section is a statistical summary for the nuclide and starts
with a statement of the known value, the control limits, and the warning limits.
The warning limits are placed at two normalized standard deviations above and below the
known value and the control limits are three normalized standard deviations above and below
the known value. If you keep control charts, these values will be useful for anticipating problems
with the accuracy of your analytical methods.
The coin shaped pie chart at the top of the summary page shows the fate of all the samples
sent out in number and percentage terms. The pie chart starts at the top and rotates clockwise.
The first sector represents those participants who submitted analytical results within both the
warning and control limits. The next sector represents those who are in the warning region but
not out of control. The third sector represents those who are out of control, but have passed
the outlier test. The fourth sector represents those who have failed the outlier test. The last
sector represents those participants who have failed to respond properly. This is the case if no
analytical results were returned, or less than three determinations- were reported, or if the results
were received too late. The reeding on the edge of the coin is spaced at one percent intervals, and
the sector shading becomes darker as the data reliability decreases. Sectors with zero width are
not shown.
The table in the center shows a number of statistical quantities calculated from the submitted
data based on the mean and median values in relation to the known value, both before and after
outlier removal. The lower pie chart uses the same construction as the upper chart and shows
the distribution of properly submitted data in terms of deviation from the known value divided
into sectors representing one, two, three, and greater than three normalized standard deviations.
The second part is an alphabetical listing, in lab-code order, of submitted data and several
calculated quantities. An entry that is shaded has been rejected because of one of the reasons
listed above or failure of the outlier test. The fifth and sixth columns are a measure of laboratory
precision. The Range analysis is a normalized value that you may use to keep precision control
charts. The eighth and ninth columns are the differences from the mean of all non-outliers and
from the known value, respectively. If this value is between 2.0 and 3.0, your analytical process
precision is in the warning zone; if it exceeds 3.0 it is out of control. A tag symbol may appear in
the last column. Each page with tags has a symbol definition summary at the bottom. If there is
no tag symbol, the data is within the control limits, but it may be in the warning zone.
The third part is a three-column listing of result average, tag symbol, and lab-code in average
order excluding those labs not responding properly. In this order, all outliers and out-of-control
results appear at the top or bottom of the list.
The last part is two bar chart displays showing frequency distributions of responding
participants. The first chart places the known value at the center and a bar at each 0.2 unit of
expected precision. The second chart places the mean of the reported measurements at the center
and a bar at each 0.2 unit of standard deviation. In both cases, a bar includes those results within
0.1 unit up to the maximum of six. Any results more than six units from the center value are
shown cumulatively by a shaded bar one past the sixth unit. If the central tendency of the known
value distribution falls away from the center, an error in accuracy is indicated. If the distribution
is broad, poor precision is indicated. The mean value distribution is similar but uses the average
and standard deviation of reported results as its basis.
-------
2/30 ESD-LV Performance Evaluation: Blind-A, 21-Apr-1998
The Range Analysis(R + SR) is calculated from the range, mean range and standard error of
the range values. The range is the difference between the maximum and minimum results for the
laboratory. The mean range is calculated by multiplying the expected precision by 1.693(for three
results). The standard error of the range is calculated by multiplying the mean range by 2.575(for
three results), subtracting the mean range from this product, and dividing the result by 3. If the
range is greater than the mean range, then the range analysis is calculated by subtracting the
mean range from the range, dividing the result by the standard error of the range and adding 1.
If the mean range is greater than or equal to the range, then the range analysis is calculated by
dividing the range by the mean range.
The normalized deviation of the mean from the grand average is calculated from the deviation
of the mean from the grand average and the standard error of the mean values. The deviation of
the mean from the grand average is calculated by subtracting the grand average from the
average of the laboratory's three results. The standard error of the mean is calculated by
dividing the expected precision by the square root of 3(the number of results). The normalized
deviation of the mean from the grand average is calculated by dividing the deviation of the mean
from the grand average by the standard error of the mean.
The normalized deviation of the mean from the known value is calculated from the deviation of
the mean from the known value and the standard error of the mean values. The deviation of the
mean from the known value is calculated by subtracting the known value from the average of the
laboratory's three results. The standard error of the mean is calculated by dividing the expected
precision by the square root of 3(the number of results). The normalized deviation of the mean
from the known value is calculated by dividing the deviation of the mean from the known value by
the standard error of the mean.
A complete explanation of the statistical calculations involved in the report may be found in
the Environmental Radioactivity Performance Evaluation Studies Program information brochure
[Draft Revision of EPA-600/4-81-004], available from Patricia Honsa, ESD-LV, 702/798-2141.
-------
ESD-LV Performance Evaluation: Blind-A, 21-Apr-1998
3/30
Gross Alpha Statistical Summary 182 Participants
The known value of this nuclide is 54.4 pCi/1 with an expected precision of 13.6; the control limits
are 30.8 to 78.0; the warning regions are 30.8 to 38.7 and 70.1 to 78.0
47(25.8 %) Failed to respond »%
7(3.8 %) Outliers •'
5(2.7 %) Out of control •
but not an outlier
Statistic
. 116(63.7 %) Within all limits
Respondents
*•• 7(3.8 %) In warning zone
but within control
Non-outliers
Mean
Std. Dev.
Variance
%Coef. ofVar.
% deviation of mean from known value
Norm. dev. of mean from known value
Median
% deviation of median from known value
Norm. dev. of median from known value
55.18
20.09
403.46
36.40
1.43
0.04
53.43
-1.78
-0.05
Grand Avg 53.26
9.73
94.77
18.28
-2.09
-0.12
53.27
-2.08
-0.12
12(8.9 %) More than 3 norm. S.D. .
7(5.2 %) Between 2 and 3 norm. S.D.
86(63.7 %) Within 1 norm. S.D.
of known value
3O(22.2 %) Between 1 and 2 norm. S.D.
-------
4/30
ESD-LV
Performance Evaluation: Blind-A, 21-Apr-1998
' — ^
Gross Alpha
Exper. Rng anal
Lab
A
AE
AT
AH
AJ
AK
AL
• jkirfc '
AP
AR
AU
AW
AZ
BA
BB
BC
BO
BH
BK
BL
BM
BN
BO
BS
BW
C
CA
CC
CE
CJ
CO
CP
CS
CX
D
DB
DD
DE
ra
DO
DT
DZ
E
EB
EL
EO
• =
Res. 1
44.8
36.8
55.4
71.1
85.5
64.0
61.6
117.3
58.6
49.9
52.6
61.1
38.1
71.1
54.2
60.0
61.8
63.9
53.0
52.4
49.5
50.0
56.8
51.0
51.0
56.8
40.5
59.8
59.4
52.0
49.5
58.7
,v **'
•%•>•, '4 •• •• '\s^
50.1
55.3
56.0
54.6
•. *
47.0
Res. 2
44.6
33.6
58.1
68.9
78.5
58.9
61.7
113.4
63.0
52.1
54.2
62.7
40.8
73.6
56.9
61.0
61.2
69.9
48.0
58.1
49.1
48.0
56.1
48.0
45.6
54.0
46.3
61.9
71.3
54.0
51.6
58.9
* X* ' •'*','•''*'
47.9
53.1
64.5
55.4
57.0
Res. 3
45.5
31.7
65.7
70.2
77.4
61.5
59.1
120.9
62.6
55.3
53.5
57.9
40.2
73.3
v'
54.9
62.0
61.3
69.9
48.0
50.9
49.0
47.0
56.6
51.0
50.2
59.6
40.1
60.1
62.0
53.0
47.4
59.1
'' \ " j'v* r
, .. -\'"f^
47.4
47.7
60.5
54.1
;
58.0
No data submitted
x =
Sigma (R
0.47
2.58
5.34
1.11
4.39
2.55
1.47
3.75
2.43
2.72
0.80
2.44
1.42
1.36
1.40
1.00
/
0.32
3.46
2.89
3.80
0.26
1.53
0.36
1.73
2.91
2.80
3.47
1.14
6.26
1.00
2.10
0.20
1.44
3.91
4.25
0.66
6.08
+ SR)
0.039
0.222
0.447
0.096
0.352
0.222
0.113
0.326
0.191
0.235
0.069
0.208
0.117
0.109
0.117
0.087
0.026
0.261
0.217
0.313
0.022
0.130
0.030
0.130
0.235
0.243
0.269
0.091
0.517
0.087
0.182
0.017
0.117
0.330
0.369
0.056
0.478
Average
44.97
34.03
59.73
70.07
80.47
61.47
60.80
117.20
61.40
52.43
53.43
60.57
39.70
72.67
55.33
61.00
61.43
67.90
49.67
53.80
49.20
48.33
56.50
50.00
48.93
56.80
42.30
60.60
64.23
53.00
49.50
58.90
48.47
52.03
60.33
54.70
54.00
TAG SYMBOLS
Determined to be an outlier
Normalized deviation
(grand-avg) (known) Tag
-1.06
-2.45
0.82
2.14
3.46
1.04
0.96
8.14
1.04
-0.11
0.02
0.93
-1.73
. 2.47
0.26
0.99
1.04
1.86
-0.46
0.07
-0.52
-0.63
0.41
-0.42
-0.55
0.45
-1.40
0.93
1.40
-0.03
-0.48
0.72
\ " .- .- .-
-0.61
-0.16
0.90
0.18
0.09
ft = Above
JJ. s Below
-1.20
-2.59
0.68
2.00
3.32 ft
0.90
0.82
8.00 X
0.89
-0.25
-0.12
0.79
-1.87
2.33
*
0.12
0.84
*
0.90
1.72
-0.60
-0.08
'• •
-0.66
-0.77
' - „ - *
0.27
-0.56
-0.70
0.31
-1.54
0.79
1.25
-0.18
-0.62
0.57
1 .,*'
-,»
-0.76
-0.30
0.76
0.04
*
-0.05
control limit
control limit
-------
ESD-LV Performance Evaluation: Blind-A, 21-Apr-1998
*O
5/30
Gross Alpha
Exper. Rng anal
Lab
ER
EV
EX
'<;FK?!
FF
"•• vii »v ^
* Wv*J\
FL
FN
f GJ ^:
GQ
GZ
HI
HK
HL
HP
I
J°_
J7
JE
•V, *• "\ s «-•• x
JG
JM
JN
JQ
JS
JY
K
KB-'
KT
KX
L
LE
LF
LL
LR
• "
^ «-/.!-
^ ^ \
^IWI % x *
MF
;-MR;
- MX*5'
MV
^
^Mlf>"
N
NA
NH
• =
0 B
Res. 1
61.5
51.7
60.5
;7ri-* 90i7"$c
29.5
^VXV % ~^X t-- ..
•> " \- V|" v^"s »N" -x
37.7
^..^L,
>;?^ ifV' ' tj??
30.9
66.3
52.8
66.1
49.6
52.6
41.7
_610^
>'^*£$
59.5
• ^"x**?"' •";•*. *•« W-;FW:J>-*<;^
V" s ,", *f\* <^
40.0
65.5
52.6
42.4
59.0
46.7
•- iO&O^
50.0
70.2
^46.9 _
• !/-:\;^ f i'sH
45.0
55.0
48.2
^ ' - x ..xxx. ^ x->™ ^vjjj^ywc,^
11 '*x I?* ^«^\;TxvV
V \> ",&* ^i\J. X'/i.^^CjjOTlR
s" i^^^-c \"v ^x^Mi,
72.VJ
-^^----^V^-S'fJ
i/- -^V-I-^C^
67.5
, vt*(,« ^' t« v^^N^!
"\ *•••.; r^\\ vx*^
50.2
69.0
46.0
Res. 2
60.9
49.1
53.2
^ffblBv;
29.9
i "^ "* - s
^ \^\^i o-Cv,r
39^9
35.0
'k-K^r?-^
31.0
66.6
42.8
67.0
46.0
52.5
43.9
TO ,,52.2 ^
-X5v!^r
53.5
<1V.XVV.^A; s ^«f^.A<«c^^
40.9
51.2
58.3
44.5
52.9
55.4
- ^-'224-i45;
52.6
64.8
45.0
ixCs \v-^ .^'v:-
49.0
68.9
45.6
av «; v"-?*' ^v*^ ••^•^'^^^
^v S^v^,'^*^^
\s^s ^^^ "•J'^^v^,'!
^"Ij-"^tt^
J^SIJB ^
X's?^\^\
iV'V *5*Jii<,
" "" 50.8
^... ™"« ^v.^ w.<\^^ -
\JV^*^V "X^
47.2
68.0
50.0
Res. 3
64.1
45.3
41.7
5";§lMi7~
28.5
'""•'' ^'"' "^ * \ X1" "
0 "'''•• u*"0^ L" ^ ^
45.4
36.0
%c^§|i^r;|
30.5
60.0
36.1
74.6
45.5
53.1
45.7
^^49.9_
?^ffV\!V
41.8
" x j*^ "V \f -.so ^ s< "
"*
40.2
42.3
54.7
43.8
51.6
57.7
i,i^\228IO\;
54.0
69.0
48.7
ii'--\-"^ ^r ~
46.0
43.5
45.9
®^T?^^^5|3!\l^'5!'xo*T
^--'^>o-v-^.s- N "v,'1 *
^X^sj»|*V *v^>; \ vo
^>-^l^r X
r.7ri?vL
'rMs^f^^r
;x\^.,< }f^ !> , - j t\ V-
62X)
»%% -•"••' ^ ^ s s- <•.. '
*. * **"' s "• t •-•- ^
51.1
66.0
46.0
No data submitted
Insufficient
data
x =
Sigma (R
1.70
3.22
9.48
"'7-141 o' .':'-'
0.72
.',-• - ' »-• ~ ~,s
3.97
2.65
x»-7o,, '-'T\^v
0.26
3.73
8.40
4.67
2.24
0.32
2.00
1.15 _ '
Vs-\ ".,^-V^S;^
9.00
•i^ '\ \~" ^ " s s
0.47
11.70
2.88
1.07
3.95
5.80
v ^,,13.51 - -
2.00
2.84
1.85
2.08
12.72
1.42
^^"•"C •>•> v>*--v\ ^ « ••
\ ^ ^ ^ ^^ ^
^% Vi*% * v v S" •-^ "^ ^ ••
\4-v%^ -^
4.60
f-x>" ' '~?V-:''\' -
^,1 Vxl ! <.'\;' V-'s :
8.51
^ t* ''••••
2.04
1.53
2.31
+ SR)
0.139
0.278
0.817
o7id4
0.061
- •• s s * ••
0.334
0.217
0.022
0.287
0.725
0.369
0.178
0.026
0.174
0.100
0.769
\" i \\«w%v
0.039
1.014
0.248
0.091
0.321
0.478
1.163
0.174
0.235
0.161
s -----
0.174
1.196
0.113
. ;~--^ •> - ^i-
""x^^xl *^1
'
0.400
6.725
^^.^ v*i ••
"'x "
0.169
0.130
0.174
Average
62.17
48.70
51.80
10120
29.30
%, ,' "„' *
41.00
37.00
''-\ ----^-x-
30.80
64.30
43.90
69.23
47.03
52.73
43.77
51.03
'•:'•' iOx'S%
51.60
*••••<•-" " "' v%
40.37
53.00
55.20
43.57
54.50
53.27
2i8:47
52.00
68.00
46.87
•:-"-" -
46.67
55.80
46.57
sv.*. ^^«^^™<^ ^ ~^v^l
^•'\\'1 ^ Vs V o "
v ^ S \"N> % "
77.J.7
f
601lO
-.
s - ^v- -
49.50
67.67
47.33
TAG SYMBOLS
Determined to
be an outlier
Normalized deviation
(grand-avg) (known) Tag
1.13
-0.58
-0.19
- >"'- ibi&,«':^
-3.05
" ^ *• ^ \ ^ v;\"% •••• •• s,s <:\
," - ,x \v--J A " - of" :" s " - ;
-1.56
-2.07
"'C !," -^-^-'x'
-2.86
1.41
-1.19
2.03
-0.79
-0.07
-1.21
__-0.28_
v^?'\>\-V-^
0.21
^^ ^v«v ^ %v.v«w>.wv« v^^w
-1.64
-0.03
0.25
-1.24
0.16
0.00
-^iCo- 21044 ,-^,
-6.16
1.88
-0.81
~' \; -- - --'v>; ' ':«•
-0.84
0.32
-0.85
^-VVS^AW^.^^ <.JK srts^XjX.-.S.-. NWSV. ^.V
x^v, '•\ X s * V1 -- ^ -^
"* "*• ^^OA ^O % %\*-N^\*k"^
:' ^'r-^v\\'i''v^t^;
J >11,3.04_^_
; , ';*;• -I V;'^Cj^,:lC
1 ~ ' "-'^ "'-"'
^6.87
% W XX ^ * X V.SXV
-0.48
1.83
-0.76
It = Above
li = Below
0.99
-0.73
-0.33
'5'.96-V'-x-f'
-3.20 &
% % '
^ ^"^ \ *
-1.71
-2.22
xS ^ ^ ^\ " ^ ••
-3.01 U
1.26
-1.34
1.89
-0.94
-0.21
-1.35
^-0.43^^
-.,-. -^x >^y'y^'-
-0.36
"^v, * t-.-.^^ ™^-o ^ ••-
- , •• *
-1.79
-0.18
0.10
-1.38
0.01
-0.14
20.89; ; x
-0.31
1.73
-0.96
- ; ' ": \% * .
-0.98
0.18
-1.00
W.X.X V\ •• f- -X^, XXW. ^ ^ •- fA •, --. *^
'"•'' " ^ '"". x ^ *• •& s
X^S x •.^ v '"" ;•• SE" ' "* x
J?--: ""','•- ,*^-,.
™ 2.90
r\ ^ ^ - ,^ • s '
.',. , « -- -^ .
0.73
^ \ * ' N
*
-0.62
1.69
-0.90
control limit
control limit
-------
6/30
ESD-LV Performance Evaluation: Blind-A, 21-Apr-1998
^\
Gross Alpha
Lab
NJ
"NK'
NO
O
OB
OF
OM
OS
P
PA
PB
PD
PG
PM
PW
Q
QM
QP
QQ
QT
QU
QW
QX
QY
QZ
RB
RD
RG
RI
RK
RP
RR
RU
RZ
S
sp
'•SFT
SG
SI
SL
SM
SN
SO
'J'Stt?'
• =
0 s
Res. 1
50.8
' -, -
55.0
66.9
56.0
56.5
- /,
55.0
45.3
- ^<",'-X-:
55.7
' - . >> '
/' ' -
46.3
"'
56.3
43.2
57.4
50.3
54.1
- " . 89,6 "
90*0
61.7
48.7
64.1
49.5
58.6
42.9
62.6
•" • * • , "*;-'?
' -"' - „- ^" '\
- ' ";
v~ -. - '-'<.•»&;
52.9
57.4
°\""' 't f "s'"'} 5,''v -
46.8
58.5
77.1
58.7
69.0
50.6
:^'~ :;:< >'-";"& :
60.0
70.2
40.7
59.1
, *,.", V
53.0
64.8
-' *• • *''
55.4
--'- ' '/>';
43.8
._ '
58.1
42.7
59.2
50.9
60.8
:l 96.0
93.8;
63.3
: •-''-'-
48.4
63.9
53.1
60.5
49.7
58.0
>-;c;>^j:
''^LJM'i
;-" /V'^|^|
^^ws
64.4
48.1
'{"-•'Xt'- iS-^^
46.9
53.1
77.7
57.6
60.0
47.4
^ ,'^ij$'.
Res. 3
49.2
r^or;;™ j/
65.0
66.5
49.7
59.8
53.0
48.0
'[.-' - / :;'-'- -
57.2
40.9
59.4
38.8
56.4
52.5
52.9
102;5
ibo.i
63.4
- < :
53.7
63.0
48.0
59.5
48.1
60.2
l^-ll^^';
^^"v-^s^ /+'* /5 [
^s-f ' '' f * V" ' J '
>' /• X'^s \ / *• i1 ^
•3\J, ^••/v •. ^ ' ^* \'
57.7
52.8
%>'..>, -^?'''<
47.2
52.3
77.0
57.9
58.0
47.9
rfr;"; v^jg;; ;
No data submitted
Insufficient
data
X s
Exper.
Sigma
1.75
' ' - •-'
5.00
2.03
7.69
1.74
1.15
10.57
: ' -
0.96
2.70
1.56
2.41
1.42
1.14
4.26
6.50
5.10
0.95
2.98
0.59
2.62
0.95
3.56
2.30
\ " •
' <
5.78
4.65
~ '•' c.
0.21
3.37
0.38
0.57
5.86
1.72
0.23
Rnganal
(R + SR) Average
0.152
0.434
0.161
0.665
0.143
0.087
0.847
0.078
0.235
0.135
0.191
0.122
0.096
0.343
0:566
0.439
0.074
0.230
0.048
0.222
0.083
0.295
0.200
0.499
0.404
0.017
0.269
0.030
0.048
0.478
0.139
0.017
50.90
"/ r"
60.00
67.87
48.80
58.47
;' , '--- '
53.67
' ' / •?' ••
52.70
--:-/ /
56.10
43.67
57.93
41.57
57.67
51.23
55.93
96.00
9463
62.80
50.27
63.67
50.20
59.53
46.90
60.27
58.33
52.77
46.97
54.63
77.27
58.07
62.33
48.63
V ;" 3.4?
TAG SYMBOLS
Determined
to be an
outlier
Normalized deviation
(grand-avg) (known) Tag
-0.30
TV/";; "V.
0.86
1.86
-0.57
0.66
0^05
-0.07
„",'. ; ," -- V ;
0.36
-. •• '•> \ f <•
-1.22
-
0.59
-1.49
0.56
-0.26
0.34
' '6,44 - /:
5,27
1.21
t< •' , ',-V
-0.38
1.32
-0.39
0.80
-0.81
0.89
- • "x/v "'"
,-.,''',''
• •• ,
•? * --", ':-.,..,,'•"
0.65
-0.06
^ "' "" ••••< ' A J ''/[ "• JJf^
-0.80
0.17
3.06
0.61
1.15
-0.59
">"' - ;&34-.'xT
tt s Above
^ s Below
-0.45
~rV;>:,O»^
0.71
1.72
-0.71
0.52
;, ^ . .'„' , ,»
-0.09
,*-"> " ™>v \ >-r • - "', i!
1 / '," , *,-,-
-0.22
i • '-"-; -\* '
0.22
*,
• ,.;; • _ -
-1^37
-',"•''- *
0.45
-1.63
0.42
-0.40
0.20
5;30 X
5a2 x
1.07
: ^,-,: _ •;;
"-0.53
1.18
-0.53
0.65
-0.96
0.75
-V- *
*V"/H , - *
1 _ . »
"V >';-;"- *
0.50
-0.21
,Jjf>i;»,;^/
-0.95
0.03
2.91
0.47
1.01
-0.73
r;&49;"' 'x7 :
control limit
control limit
-------
ESD-LV Performance Evaluation: Blind-A, 21-Apr-1998
Gross Alpha
Lab
SS
SX
sz
T
TD
TL
TN
TQ
<.* ff*M '"
••AiS>
TU
TY
U
—- "• ,-x
%/«•!*. v
rat:
UP
UQ
UY
VA
VC
VH
VI
VJ
VM
VO
VT
•W.i- -,
WE
WH
WO
WR
WW
X
XA
xt:
XD\
XF
XI
XJ
XK
XL
XM
XN
?'xo^
TCP
*^™*r ^
Res. 1
56.8
53.1
60.1
49.5
43.3
s
55.9
66.1
* *Y^" " * •• ^•••"o-X
;• - ^ oX1^*
21.5
57.3
38.9
% ^lf~-% r;1*" ^--' **?*« £^
0' " v. i s, ^ ^ s ^«. J
^xt ^;
45.5
53.3
6,1
59.0
56.4
58.4
27.7
, - ;';.-*
1 \'* ^
' , x ' ^ ;'
63.5
"•V t s •."• ^* ^X C*1*
48.4
50.8
47.1
51.6
47.4
58.0_
;.c _^™^
% %i>Vw& X^-frX.^*
,, . s-,;;N,;Vx!
V ',' - "^xX^l^f
53.2
48.0
47.9
55.0
44.2
61.9
^ 48.0
iF^Cr
^ '• ^**(;x%|x^;
^ - \\ ^* ^V \~x\
Res. 2 Res. 3
60.4
58.0
67.2
43.5
52.7
* s
61.2
65.4
•-"•,\v YSSV*S;VI'J*.,^\ •. '
19.0
58.6
39.2
CV*"'^- •• \^"' % v.-- s\'-
* v?-^ ^ X .Xv-by^ X- ^' ^
fl^t?S;
44.5
55.1
^r "0.1"*
46.1
s (.
60.9
59.9
_ ^28.2
,- ,- \XN~ ' ^ *»•'""'•»
^tx^""' - : - .-
72.7
^V \^.^ WJ^i, %SSS SMSS •.•-•. S
'-'-:xV^V:>v.
43.3
45.2
47.3
55.3
52.2
56.9
xW^S^S^t
^5^$^^^
*%%*Ax!^'Vv >•" ^-v-^
':l3»^tsr:^^
54.0
46.0
50.1
55.0
42.5
57.7
37JB_^
^j^^SlTf
r*£ ,;^\y '-';>V H^*
^^ ^X^v, ^ \v*'\w ^^
60.9
55.0
68.9
40.4
51.8
62.6
68.3
•." "
% %S^ v% "
30.0
55.9
37.0
1 J^^^;'*^
••>•. 0>>"?s
,sS " s "
47.2
54.7
• 6^1
31.8
55.0
59.2
26.7
Clt^x,!^
67.2
\! ' ^ S •'
43.3
50.7
47.0
59.5
46.7
47.0
>f:\ If,'
^r'K'
52.6
48.0
46.4
54.9
41.7
53.3
38.7
-•i'xV^'
\^ \0 *^
• = No data submitted
0 s
Insufficient
data
X =
Exper.
7/30 ]
Rng anal Normalized deviation
Sigma (R + SR) Average (grand-avg) (known) Tag
2.24
2.47
4.67
4.63
5.19
s
3.53
1.51
* N*" "•
s^ ^ x
5.77
1.35
1.19
^" ^ " " V<^ s^X"^
\ s "• ^.X v^ •* •• ^ * ^^ s
r •-
1.37
0.95
0.00
13.61
3.08
0.75
0.76
, • ^-:< ,
4.63
«" *
2.94
3.20
0.15
3.95
2.99
6.06
v^
\*
0.70
1.15
1.86
0.05
1.28
4.30
5.65
s" ^
^ J \
0.178
0.213
0.382
0.395
0.408
0.291
0.126
0.478
0.117
0.096
"• < % X ^^ s™
"" ^^ v
'---X
0.117
0.078
o^doo
1.345
0.256
0.065
0.065
•
• '• ,-
0.400
•• \ ^ •• "• v
0.222
0.243
0.013
0.343
0.239
0.478
s \
0.061
0.087
0.161
0.004
0.109
0.374
0.443
59.37
55.37
65.40
44.47
49.27
X N*1" "^
59.90
66.60
t "* *
23.50
57.27
38.37
A ^ ^ '•^";::\«^--^^ -^^"™\ ^
"* •. ^ ^ %\^ «•*.*• X ^^ ^
^\^:,5;,S5;:'
45.73
„' 54.37
•i "' '' ^"dcld^^c-1
45.63
,, i-;"%t;^;--:;
57.43
59.17
27.53
- -- - "' ^\ ;V74^\ ";;
- , , «," ' , _ ;
67.80
* v V v' %
- '»>;' -x^ ^'-,- , V
45.00
48.90
47.13
55.47
48.77
53.97
- , ^ .,\". ;^7vT™
-V.,^:^,,-^,^-,,^
"" " s%\
^ ^ *• ^ i ^ ••
53.27
47.33
48.13
54.97
42.80
57.63
41.50
" ", ",/vs\,y.
• ,.,/> -'-'V ::^;'~x
v s,^ v.,° S '5X , X ,,^
TAG SYMBOLS
Determined
to be an
outlier
0.78
0.27
1.55
-1.12
-0.51
;xi^ip
0.85
1.70
"^ « ^ v^ -•-•• O- '
- ^ v v" ^ *\ % „ -- J
-3.79
0.51
-1.90
% - %tv v ^^^"N^
"" , V * ^N."-.* s^,^-.4x
x'x^V^t"'
^ ^ ^ <1'St \--HS "_,.' ^ ^
-0.96
. 9;14...^.
'«€L.7-7": ' •""'
-0.97
"" ' > -?;,!'S%'"
0.53
0.75
-3.28
^'Sf^-V^;'
"'"^-.ii*-.
1.85
« •• *«% ^"
, " ^
-1.05
-0.56
-0.78
0.28
-0.57
0.09
; ^•v;*-~-
t\- :'v'^ '^'
"* ' "* ;* N % * N
0.00
-0.76
-0.65
0.22
-1.33
0.56
-1.50
- ,»V,^;; ;- V^
•t^Kf^x" '^:,,
^.v ^ A^^ % . ,, ,.,,\s
tf = Above
•U. = Below
0.63
0.12
1.40
-1.27
-0.65
J"::;%p;^: "
0.70
1.55
s -v^ ^^^- sv^« \^^<-.^<. >.v
" " ^ ^ ^ ^ \ ^ ^
-3.94 li
0.37
-2.04
\ v r% •'^^^v? -^ ~-v
\^Oss^ ; * *\ % ^ ^ ""
-o 13;--^'
-1.10
0.00
\-6»92~ ^xo"
-1.12
"'•"' \. 0 s^"1 '•*'• ' '
0.39
0.61
-3.42 U
:'X'"V*V '•-•:'
' - ' , " \,» s
1.71
J %%W SS S V S%\ ^ ^ - «V^^ ^
?,\ _ /---«uv
-1.20
-0.70
-0.93
0.14
-0.72
-0.06
v'"o-"\;, ,;» '
' ' ' \C -";-;- *;>:
^ \ " ^ !;-. ^
,- -' <\:V>* .,'
-0.14
-0.90
-0.80
0.07
-1.48
0.41
j-1.64
Vj'-,t;l ^,,:^« 0!
s ,- : -' -1^ ' V^_ ,•
^ ^ ^ Nl; 's '.. .^sv
control limit
control limit
-------
8/30 ESD-LV Performance Evaluation: Blind-A, 21-Apr-1998
Gross Alpha
Lab Res. 1 Res. 2
XQ 39.0 30.1
W««\ , ,•;'•';'",:'"•' *'-' ' '-
, An •;•• ="-•<-• • ^^
Exper. Rng anal
Res. 3 Sigma (R + SR)
39.0 5.14 0.387
' ' '•.'"'!• ' \ ""' ' '• '
„'''"'•" " , •
Normalized deviation
Average (grand-avg) (known)
36.03 -2.19 -2.34
"* "" * J ^->^\-ttfM«.". -. ' ^-. fVft^ , _-•. -. ™%^
, ,\ ..... \ ,,''*,. ^f >\ t •• ;,
Tag
x
, < «:
Data sorted by Laboratory Average
Average Tag
0.10 x
3.47 x
23.50 U
27.53 U
29.30 li
30.80 11
34.03
36.03
37.00
38.37
39.70
40.37
41.00
.41.50
41.57
42.30
42.80
43.57
43.67
43.77
43.90
44.47
44.97
45.00
45.63
45.73
46.57
46.67
46.87
46.90
46.97
47.03
47.13
47.33
47.33
48.13
48.33
48.47
48.63
48.70
• = No data submitted
0 = Insufficient data
Lab
UY
SR
TU
VJ
FF
GQ
AE
XQ
FN
U
BB
JM
FL
XN
QM
CS
XL
JS
PM
I
HI
T
A
WE
VA
UP
LR
LF
L
RI
SG
HL
WO
XI
NH
XJ
CA
DT
SO
EV
Average Tag
48.77
48.80
48.90
48.93
49.20
49.27
49.50
49.50
49.67
50.00
50.20
50.27
50.90
51.03
51.23
51.60
51.80
52.00
52.03
52.43
52.70
52.73
52.77
53.00
53.00
53.27
53.27
53.43
53.67
53.80
53.97
54.00
54.37
54.50
54.63
54.70
54.97
55.20
55.33
55.37
TAG SYMBOLS
Lab
WW
OB
WH
CO
C
TD
N
DD
BO
CJ
RD
QZ
NJ
ID
QQ
JE
EX
KT
DZ
AW
P
HP
SD
JN
DB
XF
K
AZ
OS
BS
X
EO
UQ
JY
SI
EB
XK
JQ
BH
SX
Average Tag
55.47
55.80
55.93
56.10
56.50
56.80
57.27
57.43
57.63
57.67
57.93
58.07
58.33
58.47
58.90
59.17
59.37
59.53
59.73
59.90
60.00
60.10
60.27
60.33
60.57
60.60
60.80
61.00
61.40
61.43
61.47
62.17
62.33
62.80
63.67
64.23
64.30
65.40
66.60
67.67
ft = Above control
x = Determined to be an outlier v s Below control
Lab
WR
LL
QT
PB
CE
CP
TY
VH
XM
QP
Q
SM
S
OF
DE
VI
ss
RG
AF
TN
NO
MV
RK
E
BA
CX
AL
BK
AU
BM
AK
ER
SN
QX
RB
D
GZ
SZ
TQ
NA
limit
limit
-------
ESD-LV Performance Evaluation: Blind-A, 21-Apr-1998
9/30
Gross Alpha
Average
Data sorted by Laboratory Average
Tag Lab | Average Tag Lab | Average Tag
Lab
67.80
67.87
67.90
68.00
69.23
VT
O
BN
KX
HK
70.07
72.67
77.17
77.27
80.47
AH
BC
MF
SL
AJ
94.63
96.00
101.20
117.20
218.47
x
x
X
X
X
QW
QU
FE
AR
KE
% responding labs
10
Frequency distribution
-6
-A
-2 6 +2
Normalized deviation of the mean from the known value
% responding labs
Frequency distribution
-6
-A -2 0 +2 +4
Normalized deviation of the mean from the grand average
• = No data submitted
0 = Insufficient data
TAG SYMBOLS
x s Determined to be an outlier
ft = Above control limit
li s Below control limit
-------
ESD-LV Performance Evaluation: Blind-A, 21-Apr-1998
10/30
Radium-226 Statistical Summary 182 Participants
The known value of this nuclide is 15.0 pCi/1 with an expected precision of 2.3; the control Umits
are 11.0 to 19.0; the warning regions are 11.0 to 12.3 and 17.7 to 19.0
92(50.5 %) Failed to respond
9(4.9 %) Outliers
4(2.2 %) Out of control
but not an outlier
Statistic
; 7O(38.5 %) Within all limits
Respondents
- 7(3.8 %) In warning zone
but within control
Non-outliers
Mean
Std. Dev.
Variance
%Coef. ofVar.
% deviation of mean from known value
Norm. dev. of mean from known value
Median
% deviation of median from known value
Norm. dev. of median from known value
17.91
26.63
709.33
148.72
19.39
0.11
14.38
-4.11
-0.02
Grand Avg 14.57
1.70
2.91
11.70
-2.88
-0.25
14.37
-4.22
-0.37
13(14.4 %) More than 3 norm. S.D. .
7(7.8 %) Between 2 and 3 norm. S.D. *
;46(51.1 %) Within 1 norm. S.D.
•
of known value
• 24(26.7 %) Between 1 and 2 norm. S.D.
-------
ft -
III
30
ESD-LV Performance Evaluation: Blind-A, 21-Apr-1998
Radium-226
Lab
A
AE
AT
AH
AJ
AK
AL
'Af*
'-*"* ,
AR
y'AD
AW
AZ
BA
BB
BC
BG
BH
BK
BL
BM
BN
BO
BS
BW
C
CA
CC
CE
CJ
CO
Res. 1
13.6
13.2
14.3
'?• . •-;'/, • ••;•••
20.0
13.7
14.5
; - .','•'""
' *: ' ••' '.•':,-''
,y/-v^Jis;^
14.0
16.1
13.0
;,,;; ^ ;_, ^\
16.4
- '••,;-' ,
13.4
14.7
^ •• ""
13.4
12.5
14.3
* < •>
15.1
14.6
" *
12.7
15.0
'".''-''' "•
Res. 2 Res. 3
13.8
13.8
14.1
' ' -4'Sf ' - / £ *•- -
19.8
13.9
14.0
' '<: , s< S ' <-'V*
' V "• '- 'i'\.^' -' ' '•
'-' **'?. **£>»•. - '
'$£&$&) ,
14.1
17.6
13.6
"". '• '"-''- -'• '\,!~'
19.3
' ^'V ,-; v'/"'-
15.2
15.0
~- "»• _ - , - ,
14.0
12.8
15.2
.'" ,. i '"
15.4
16.3
> -
13.1
15.0
^-•\ 'y^- • -- I^i-,; :
car'" : ''>'. o. r'; :\ A"
cs
ex
D
DB
DD
DE
::m:
DO
DT
DZ
E
EB
EL
EO
16.3
s
13.8
""," - '-,'-' ,--*/-; ->X>
14.1
Or "\ !'•;•'.' '£
-; „, - y '' \;i
14.0
16.2
14.1
11.9
16.8
15.1
16.0
;-V '~~:'-\^-^ -'
„ ,H.^'l,/'^
\§^^^^4*
" ' ' 14.3 * "
{ /~^?sit^
'•'• \'"''%^^
14.2
13.6
14.3
12.4
18.6
15.8
12.4
14.0
14.0
18.5
14.6
14.6
,'i- '•.-,
• -' ' > < -
•','*'' <-'?'V-
^4j' -
14.5
16.0
14.2
16.2
, '• „-, ,
15.8
14.6
- - ,,- *
12.1
12.9
14.5
15.3
14.9
;- •'
15.6
15.0
^Sr5;
' \"" ^ /
15.9
-1 ''< !-• :
- if- ~
14.0
S^J^'
14!5
SS>'
~'-}'i^7t
14.6
15.0
14.8
12.3
17.0
15.5
• = No data submitted
0 a
Insufficient
data
x =
Exper.
Sigma
0.76
0.42
0.15
0.81
0.47
0.32
- - -;- ' *
•* ' •- %%
o;3^
0.26
0.90
0.60
- '"•'•
1.73
1.25
0.21
<
0.97
0.21
0.47
0.15
0.91
^ •.
1.57
0.00
'?*- ", - ^
'"-".,
0.21
/'.,"• ' *
^ • ,
0.20
^:J'Vx '"-
0.20
;<:/v;';:': ^;
r^< , '
0.31
1.30
0.36
0.26
0.99
0.35
Rnganal
(R + SR) Average
0.360
0.205
0.077
0.385
0.231
0.154
* - \ f
? " ^
0.180
0.128
0.411
0.308
0.796
0.616
0.103
0.488
0.103
0.231
0.077
0.437
0.745
0.000
0.103
0.103
0.103
/ '
0.154
0.668
0.180
0.128
0.462
0.180
13.27
13.67
14.13
19.43
14.07
14.37
:• '
>v -'.6.77^
14.20
16.57
13.60
17.30
•». * A '
14.80
14.77
13.17
12.73
14.67
: •
15.27
15.27
13.80
15.00
' -'
16.07
13.80
':. ' ^ ••
14.30
'-,-'/ '"• ~
'';V - ';_-' ^!
14.27
14.93
14.40
12.20
17.47
15.47
TAG SYMBOLS
Determined
to be an
outlier
)
Normalized deviation
(grand-avg) (known) Tag
-0.98
-0.68
-0.33
,< ; -;.
3.66
-0.38
-0.15
~;\,- '-^s-'"
-,' ""'"", : _- ^s\' '
' ' / \*<- "V'~ •• '-
•; "-*4WMiv.-.
-0.28
1.50
-0.73
v " \- '• ''•S ' ' ' ";v-l
2.06.
'- , ," ° ;-.-.
0.17
0.15
-1.06
-1.38
0.07
> '
0.53
0.53
-0.58
0.32
1' \**'' • * V ••"**'
> •• , >-.-'•
1.13
' '/ ' •->-" . .
''/ » " -- "•'
', ,Z:?;58', 1 ,.
-?V^ '' -,/v-/V
-0.20
^$^:>'^^K:
'^VA.^-/-;^ V;
-0.23
0.27
-0.13
-1.78
2.18
0.68
ft = Above
•11 = Below
-1.31
-1.00
-0.65
,-'-, X -, ; - *\ -
3.34 IT
-0.70
-0.48
*'** ,\ "•«'•
,; 1,'-/N-.\1'- *' " %
V,< , :^^ ^,;
\:
-0.60
1.18
-1.05
V .',."/ ""'I- '•---
1.73
.' ", " ' ''•/ *' '-
-0.15
-0.18
H**«' "-'""" '»"'"<
-1.38
-1.71
-0.25
', • "
'-^i-'' "-\^-»: ''
0.20
0.20
/"' " '•'
-0.90
0.00
x\v; -!:V~ '{-*;- ,,
•, ">-(i.--
0.80
\ _ -> »- ,
' • • , ' *- j '•
-0.90
"':•:.:> : ~^^' «/>v
-0.53
?*^<$$:\'$'T«
•^-v^^V'f-^
-0.55
-0.05
-0.45
-2.11
1.86
0.35
control limit
control limit
-------
ESD-LV Performance Evaluation: Blind-A, 21-Apr-1998
12/30
Radium-226
Lab Res. 1
Exper. Rng anal Normalized deviation
Res. 2 Res. 3 Sigma (R + SR) Average (grand-avg) (known) Tag
ER
15.1
15.8
15.5
0.35 0.180
15.47
0.68
0.35
0.81 0.360
0.462
13.97 -0.45 -0.78
17.67
2.33
2.01
12.3
0.40
0.128
0.128
0.180
0.616
0.976
1.394
0.334
1.248
0.282
0.308
0.180
14.93
14.80
14.87
13.33
13.23
15.50
14.73
0.27
0.17
0.22
-0.93
-1.01
0.70
^"\ s "•""
0.12
-0.05
-0.15
-0.10
-1.26
-1.33
0.38
-0.20
13.60
19.23
14.33
11.83
-0.73
3.51
-0.18
-2.06
-1.05
3.19
-0.50
-2.38
*
•-
ft
l|?^£b" Y^163/; ," OJ70;-Y;;;5^$3-\S:"^|8a6!f^;6,52 ; ,:x3;
S^ •'^;;. >;- "Tr:-'<>>* > =••',,-'':. ..;" - ^- ^-^5!S><^^\" X:;>>!-,;;". **-
.^i^ ••VC / ^.."•"s1: "" -. '• " ~: •- "-^ X . •• . .'•'"'•'' '-,•-'' . >sA«x^ v % % .%i-:*w-> ••'L,V,''\ i\ * .s \i " ^ '•'''' s"1 ^ ^
5::-.-. •> v :$^:$§tjj&«&£ $$
MF 11.4 13.4 12.7 1.01 0.514
12.50 -1.56 -1.88
S X 'iV "^ * , ^ xX^^v"-. \^V " " ;-. N O^Xvv
N
VKA-:?>;
NH
15.2
<\^^
12.1
14.1
;:;;rc^s>:;
12.8
14.4
\^X\ ".•••• ! ^
12.9
0.57
0.44
0.282
0.205
14.57
- °\sv-
12.60
0.00
^ \ s ^ ^ ^ •*" -. ^
-1.48
-0.33
-1.81
«,,-
• = No data submitted
0 s Insufficient data
TAG SYMBOLS
Determined to be an outlier
IT = Above control limit
li = Below control limit
-------
13/30
ESD-LV Performance Evaluation: Blind-A, 21-Apr-1998
Radium-226
Lab
NJ
"NK
NO
0
OB
OF
OM
OS
or
P
*1»A '
-Mr A j
PB
PD
PG
PM
PW
Q
QM
QQ
QT
QU
QW
OjX
QY
QZ
RB
RD
RG
HE
RK
RP
BE
RU
RZ
S
SD
';RIP'~'>
\ ^™~^
'-8O^
SI
' '-Sttj ':~
SM
8N
30
8R
Res. 1
16.1
15.5
15.3
, '",
"" •. J ''
15.7
••s
14.5
V ^ -. , ..S
20,8
14.1
12.8
10.5
• 34':-
21;8:
60.7
13.9
12.6
,
12.8
' / . : '•""
'"' 344:4
•>- - "'- :„
15.4
13.7
S ^ s ' '' ' ' *\**V
''•VV' '•*<„' **••'"> V
!,"**X >.'' /-"-^
10.2
""' " '- •." ' ., V ^ J J"
18.8
* \ -• ' V:~
%
Res. 2 Res. 3
18.3
* "" / ' ••
15.7
15.1
-,'' !-»",<• - -/- ' , '
^ v ' ^ ' S ^ ' ^ '..
\ , '*V^,:x^*
• '"-,' "?:";'
17.6
%, s >-;> -
15.0
•'•'„> •'"• -',,- /-
v ^ ' ^ s "•• •• '
',-' ",' - '
'"> -21.4;' '
14.4
13.2
10.9
, ' 6.4 '
21.4
'< ' ',-
60.1
14.3
~- r ' '- - \- ' ''
16.3
'•• •••< t ••
12.9
f^m^
/- ''^4^'Ȥ'C-V-'\5- ,"\^f'?''*1f,'"-'
.
11.1
^'';^',S'->*M%k^ "
19.0
\ ' *• ., : ' ^
'-.'•&•• - '', -.-.
15.7
^
16.7
13.7
14.7
_. s
14.8
21*0
14.6
13.0
10.7
"is -
,2
61.5
13.3
13.7
'/•.""V •>/.(
14.0
-,"-<"' >
^ ^-v" '^ ' "" s
1^.4'
15.2
12.5
J ':';*'>*'
'''••'". '':A»,;;<
• ''f "V,/ ?
9.9
' ;-'-,.'
19.0
* '
• s No data submitted
0 =
Insufficient
data
X s
Exper.
Sigma
1.40
0.64
0.87
-"
1.47
0.25
0,31
0.25
0.20
0.20
193
0,67
, • ' •
0.70
0.50
1.90
AA '
0.67
.- -,\- ,,
75,67 -
^4J;; V1%'
0.12
0.61
* f ^ / '
, , " -i"
0.62
0.12
Rnganal
(R + SR) Average
0.668
0.308
0.411
0.745
0.128
0.104
0.128
0.103
0.103
0.873
0.334
0.360
0.257
0.950
0.308
71.981
0.051
0.308
* , ' '
0.308
0.051
16.70
15.97
14.70
16.00
14.77
21.07
14.37
13.00
10.70
6.33
21.23
60.77
13.83
14.20
13.23
262,23
t
15.27
13.03
10.40
18.93
TAG SYMBOLS
Determined to be an
outlier
\
Normalized deviation
(grand-avg) (known) Tag
1.60
'; ' " ''
1.05
0.10
' "-- , -
N * v
'-'•'.•-,
v
1.08
0.15
, * ~ '
4.89
-0.15
-1.18
-2.91
-6,95
5.02
34.79
-0.55
-0.28
1
-1.01
- , ,. »„,
1.28
,, ;,., - »
0.73
-0.23
-*
P '
'•'/„", ' »
' / .. * '
.,%<0'^ •:
0.75
, •••
*, ' "
-0.18
1 V * •
* -,
: 4. V '' ^ * ,
^ ••-.-.
4.07 x
-0.48
-1.51
-3.24 II
-7.28 x
4.69 x
•
/ ' •
34.47 x
-0.88
*
-0.60
- ' --' •' ,
*
-1.33
'- ' *
' " \ ', , »
186.51 186.18 x
. :,, -- - V '
0.53
-1.16
* ' *• *" •- •.
' ' -. ,, V;X' ^ "" ' '
-3.14
-. 't, '%* """;'
3.29
•i.
,
IT = Above
II = Below
v . - - •• - "
0.20
-1.48
" >i *'•?:•?•. " "4- *
'~:i'- '' -'^''\5<--' -
," - '''V" '*
-3.46 ll
\..^- -:- i
2.96
1 / *
,.,,,.. .. ^ ,, ^ ,
• '•
control limit
control limit
-------
ESD-LV Performance Evaluation: Blind-A, 21-Apr-1998
14/30
Radium-226
Lab
SS
SX
sz
T
TD
•: TL.'
TN
TQ
""fl^^ "
ID
TU
j^f
U
|JA^
- *
;"TTJC "~
UM
UP
UQ
,,uir*
VA
vc
VH
VI
VJ
VM.
vr
w
WE
WH
wo
WR
WW
X
XA
XC
|| 'M- t
J^\ J '
airkjnir
,XF-x
xtt
ijur
* ^XK?
*^r*i^m^ %
XL
XM
**3ENP
X ^~ £,
-^,
• =
0 s
Res. 1
15.8
13.9
17.0
___ 15.2 _
' !23;4 ';*
v ^
12.8
15.3
"• •-" • . v *• ^"- ' ^
•s - -x-
12.1^
l?v!'"\ j,<;\!C\x
13.3_
«~4 ,\v -• % ;"^
«,.,•• W ^ .. V , s ^ .,
* .. .. s""' *" *
% s v "" ^ ' - \ f
"•v -'** ;-"--\
14.9
__13.3_
\ .', ^VV>SC^
19.0
s -'" V" •>;;
14.6
16.2
- \
i "" \ >.
_ 12A^
'•".••" ,!- V
15.3
17.5
-x •"- •" C^
s ' i "• ^' i \ ?•.?*
•. v. -i' ^x>. C" ""^'OS*"^
13.3
18.1
* .." ^"S*7t^>v5^
\ s \ % '"' \s '"v *^ %"*
""• ' ^ * "" t "^ V:'r:>t4^
''.XW^'^X
*. '"l /^-JNX^C^'^xV
* V NA ^ v f 5,,^,*
14.7
13.0
AWJ^S^. UUW^W o ^•r^> *N
%* - «'"" ? "\V^-.\ v-*<;
Res. 2
14.1
14.8
14.4
15.3
o :l22;9-^:~
•' ' ' -x , }
14.8
14.8
"."" -t ^ -""v\ -%
S s ^ X
_.' Jlj2_ _
^S *SS 1^WA«.^\ II W.™
13.8
• ;'«•'• _ ' ""''^
' X " X ^ ^ ^
N - ' '*' '^ V '
1 >>,>/>' '
14.8
14.4
,^^^-^i^
. ..IltIL
i % ^ *• \v'..''s'- ^ ,
13.2
13.4
11 ^ %
•• "" •• *" v
10.8 _
^^SSf^
16.0
13.5
4MvJ?'-;',"
^-5^S^|^;
13^9
16.4
«x>^^v;^ V^Vs^K
^\1*$«\^\S!?'""*'''A *•* ^
^i11 v? x"1^? *^^ *• %*J ""s's
*t -.s X* """ "' «-'5Ns*
^^^^4
:|;v'^iB^'
:V^K?^'?%
r *^^, ^* *%^v^£
s,X,«« ^ ", 'v* i"*?^
15.1
14.0
^'-J^?1", vV]'; .'';
^f)S¥vr" ";sf |
^^!%?S
Res. 3
15.8
13.7
15.5
15.2
xrfA20JU% '
s ' f \-^ - •• s % ^ N "
15.4
15.3
-« ^^^
"" *
13.1
;;~\; -f" , ^
13.7
~ s sX ^ "•
12.8
_^_13.4
^^ r\j -"
^^16.1 _
V^^;j \'-{-'
13.1
13.4
"%*\ \" ' ~
Jl ,' : -A '-! ,' ~,
>w_n^_
l^rr^rj;!
15.8
18.0
"" ^ •- *• ^\%
cJ^^C % - ;
13.7
19.9
^W!rJh./':*
S *\*J,N -^% s
^ <^'N ' ••' "" ""••••
\ '•-VsX^<''xi v " "^
,€fiii^v:->"
:,V;' ;::^.\
!--v.<":\iS?*;.''""
^vs^V'^Vv,-* -Y>
s V ^ V\^wVr^ ^ ^ ^ ^
15.5
13.9
s' !"-S- \iV^ t".' \X
:S!^"A'Vi'/'-
x-i' ^Vw^y'5^; ,;'\v
>^Si^*.j::^
No data submitted
Insufficient
data
x =
Exper.
Sigma
0.98
0.59
1.31
0.06
1.72
^ ^ --.^ -
1.36
0.29
"V \^ "..
0.95
0.26
1.18
0.61
< \ \ \'^
2.15
\ s
0.84
1.62
1 \ \
0.80
,\~ ".»*>VT* !X "
0.36
2.47
- , , -
0.31
1.75
•':,;< lS - '., }\ ^
\< i
;, --'-,,
^:;, p.75 ,
^v'T - "
s ,S *" " ^
0.40
0.55
v
" % V " *^ \ "i.
i"*^** ^ ••" •^"^"% ••V" X %
Rnganal
(R + SR)
0.437
0.282
0.668
0.026
0.822
0.668
0.128
X " "• ""
v•
0^488
0.128
N v
0.539
0.282
'•v '* ' > v '
1.150
0.385
0.719
• ' ' ' ,-
0.411
^\>-, -^'\-
0.180
1.296
\> .>'x ,c >«•-„>
0.154
0.899
i ^ -•• --v '"''' X
•."• ^ v
^ ^ ' *'•'* X\
'' s\-.'--tr--\
'>j«fc'.l
\=~, YS, : s " -\
'"'.", - - o*!^
^ l^<. ' "\
0.205
0.257
^ "" ^ ' \ 0 "" ^ ^ * ^
-vf'"Xlv \~
-^-H^-V!-'^
Normalized deviation
Average
15.23
14.13
15.63
15.23
"'' 24.13";
;-' \tc;.t^
14.33
15.13
•••. ;<• '•'• T-. '
12.13
s 'cy x^*^
13.60
' " ~'-'-1,\K
^ X V X ,* \v
'" ' > ' ';- x '
14.17
13.70
,™'-\ \ \~; V
16.63
'-^f^.v^
13.63
14.33
,v"~.;-\,s:
*• x^ ; \
11.60^
"v^lTCv^
15.70
16.33
v 'W ;' x \ti
u.vS't^l;^-
13!63
18.13
'* s % A,X\
* v ^' ^ x
, , . •" >t. -\
,-; --x\v$»^£
*'V-'- i\T!
\ \*^?\;\>X<^1
S' ^S "\ S ^ s •," «t -.
15.10
13.63
- - " ' 7 " \"* x
X-c^'V/
^/V?^;
TAG SYMBOLS
Determined
to be an outlier
(grand-avg) (known) Tag
0,50
-0.33
0.80
0.50
;s:V\; 7j20. '
ViV^'sv'5'' -• -
-0.18
0.43
\ „" ^ ^ v> ^ X^~ ^v,,..1
-1.83
VTV^ v^ %« "* %WH "^ w^p.^
-0.73
•• is ^ - v s" 5 - s -• x* ^
K "" V ^ X s .. ^ s
V V^ V" <
-."• ••''s'V \% •> s s >. \v^'1
"%V s**"* S " "" * ^ "^
-0.30
-0.65^
-V^;;v^>^!;;^:
1.55
^.^q^^*^
-0.70
-0.18
\ - •
-::;,:>5,;-
,\ ;^!--,\^-is -, -s ,
l.ll:^!^ _
;?;"S3!?l??'."?'
0.85
1.33
; '-; .'^vk^^'^H1
;"v ;lIklil^j--A^?'*
-6.70
2.68
hvr*$X^u\;x'^
1-11 ^ " s '"'""' '•"'•fC'' -.^ ^< \ "s
\ s % *• * s s '•'!N' \s 1
^s-^s's ^ '•/\'' x ^\%
-: -t-;/r, ^^^ti
^^^O^'-^
?^?SS5S:-
N"' 3 fx - " ^- \C^ " "l"!^"^-
•>l\ v.«" s w\V\"^ O^^i-^"' *
0.40
-0.70
^ X"w X>" ' «v s^fwvw-<;^^ s*^;
\>5x
1.23
'f^^x^^i™?'
-1.03
-0.50
.
' C --[
•:- i^r. '
••2.56
"^?F':">--:
0.53
1.00
•^ ^ " __- \ ^, _,,*-
/.. :/>"-; v*'-*'
-1.03
2.36
";vy---: ;'•• r
1 """^ ^
v ^ ' ^ "• 4t ^
* * i •• V^
.v^O^v; >:-'-•
^40~".Vk\;
X i "• > "* ^ ^ ;
* {x ^j"1^ ^^'"' ; ^ ^-^
, ,si "• ^ ^
0.08
-1.03
C " . • J V -- #**"«
;--': ^,: 1* ^ \;;
;' ' ^J:'* >
control limit
control limit
-------
15/30 ESD-LV Performance Evaluation: Blind-A, 21-Apr-1998
Radium-226
Lab Res. 1 Res.
JW|.«£H.^' ' y &&:*••!•"' ?t
jjl .-.-'-: <- ,, ••_•;?;
Exper. Rng anal
2 Res. 3 Sigma (R + SR)
•\^%&'^;?->^\i:* v..>;""% - ;
'•'*:'V* '^'v~'v;". . ,- , ,;>
Normalized deviation
Average (grand-avg) (known)
,' >" * '•'.;, »; ;-;>^v ,\ .;.^':,%.
' ' ' S "" "* '"• ^ "" •. "• \
Tag
* .
•, '
Data sorted by Laboratory Average
Average Tag
5.33 x
6.77 x
7.83 x
10.40 U
10.70 U
11.60
11.83
12.13
12.20
12.50
12.60
12.73
12.80
13.00
13.03
13.17
13.23
13.23
13.27
13.33
13.60
13.60
13.60
13.63
13.63
13.63
13.67
13.70
13.80
13.80
% responding labs
10' -----------
- m _
° -6 ' -4
• s No data submitted
0 3 Insufficient data
Lab
QT
AU
XI
SI
QQ
w
L
TU
EB
MF
NH
BN
GQ
QM
SD
BM
RK
ID
A
I
U
JS
BA
XM
X
VH
AE
UQ
DB
CE
Average Tag
13.83
13.97
14.07
14.13
14.13
14.17
14.20
14.20
14.27
14.30
14.33
14.33
14.33
14.37
14.37
14.40
14.57
14.67
14.70
14.73
14.77
14.77
14.80
14.80
14.87
14.93
14.93
15.00
15.10
15.13
Frequency distribution
• I I 1 1
Lab
QZ
FE
AK
SX
AF
UP
RD
AW
DT
DE
VI
TN
K
Q
AL
E
N
BO
O
JM
PB
BK
HL
BH
BP
HK
DZ
CJ
XL
TQ
Average Tag
15.23
15.23
15.27
15.27
15.27
15.47
15.47
15.50
15.63
15.70
15.97
16.00
16.07
16.33
16.57
16.63
16.70
17.30
17.47
17.67
18.13
18.93
19.23 tt
19.43 tt
21.07 x
21.23 x
22.33 x
24.13 x
60.77 x
262.23 x
fl •
Normalized deviation of the mean from the known value
TAG SYMBOLS
1t = Above control
Lab
T
SS
s
CA
C
ER
EO
JE
SZ
WH
NO
P
CS
WO
AZ
VA
NJ
BC
EL
FN
XA
SM
JY
AJ
PW
QU
LR
TD
QY
RU
P
+6
limit
x s Determined to be an outlier •li = Below control limit
-------
ESD-LV Performance Evaluation: Blind-A, 21-Apr-1998 16/30
Radium-226
% responding labs Frequency distribution
10-
-6 -4-2 0 V2 *«
Normalized deviation of the mean from the grand average
-------
ESD-LV Performance Evaluation: Blind-A, 21-Apr-1998
17/30
Radium-228 Statistical Summary 182 Participants
The known value of this nuclide is 9.3 pCi/1 with an expected precision of 2.3; the control limits
are 5.3 to 13.3; the warning regions are 5.3 to 6.6 and 12.0 to 13.3
104(57.1 %) Failed to respond.
2(1.1 %) Outliers •
4(2.2 %) Out of control
but not an outlier
Statistic
. 68(37.4 %) Within all limits
Respondents
* 4(2.2 %) In warning zone
but within control
Non-outliers
Mean
Std. Dev.
Variance
% Coef. of Var.
% deviation of mean from known value
Norm. dev. of mean from known value
Median
% deviation of median from known value
Norm. dev. of median from known value
11.90
19.12
365.48
160.69
27.93
0.14
9.42
1.25
0.01
Grand Avg 9.50
1.61
2.59
16.94
2.12
0.12
9.33
0.36
0.02
6(7.7 %) More than 3 norm. S.D.
4(5.1 %) Between 2 and 3 norm. S.D.'
49(62.8 %) Within 1 norm. S.D.
of known value
19(24.4 %) Between 1 and 2 norm. S.D.
-------
18/30
ESD-LV Performance Evaluation: Blind-A, 21-Apr-1998
Radium-228
Lab
A
AE
AF
AH
AJ
AK
AL
AP
AR
AU
AW
AZ
BA
BB
BC
BG
BH
BK
BL
BM
BN
BO
BS
BW
C
CA
CC
CE
CJ
CO
CP
CS
CX
.b*;"
DB
DD
DE
pi
DO
DT
DZ
E
EB
EL
EO
Res. 1
8.0
8.2
11.7
7.4
7.9
11.2
1.7
11.6
9.9
8.2
11.9
9.4
10.2
10.5
9.7
9.4
8.9
12.1
8.3
% s ' ' " O
10.1
"* x ' •• '
,' * " -' '<
8.4
7.1
- '', -<"
8.4
8.7
8.9
9.5
7.8
9.8
Res. 2
8.0
8.3
10.8
10.2
6.9
„ 7:7
10.0
12.1
9.7
7.8
V« . - *,
11.6
8.4
9.2
^ ""' f
10.8
9.3
9.5
7.0
9.2
, 8.7
!| •"• ' ' '\ f '
,9.4^
:'^S|s5-
^??^y$^
'^3^
7.3
"• ^ .•. v ^ •.**" * -\ "" f
> -i,':;;^x?"'~
8.5
9.0
9.3
9.1
8.8
8.9
Res. 3
7.6
8.5
12.3
8.3
7.0
8.1
-"f
2.7
12.3
10.4
7.6
-/"'
0.15
0.61
0.50
,'
0.15
0.50
-
0.10
0.98
1.67
0.20
"•'-• '•• -, -,
0.56
^^liV';" ' ,
0.21
0.20
:/t-E:;: Vf,<>;V,
0.55
0.15
0.35
0.23
1.26
0.45
Rnganal
(R + SR) Average
0.103
0.077
0.385
0.719
0.257
0.899
3.155
0.180
0.180
0.154
0.077
0.282
0.257
0.077
0.257
0.051
0.488
0.745
0.103
0.282
0.103
0.103
0.257
0.077
0.180
0.103
0.642
0.231
7.87
8.33
11.60
8.63
7.27
9.00
i y , y-
4.80
12.00
10.00
7.87
11.73
9.10
9.70
10.67
9.77
9.50
7.80
10.17
8.50
y * %
9.50
', - * •''--
8.23
7.30
•*:
' ,~- ,-\--^x; ;
8.13
8.87
9.27
9.23
8.97
9.37
TAG SYMBOLS
= Determined
to be an
outlier
Normalized deviation
(grand-avg) (known) Tag
-1.23
-0.88
1.58
-0.65
-1.68
-0.37
\ v.^ , - ,*" (,,;^,'
-3.54
1.88
0.38
-1.23
1.68
-0.30
0.15
-- ' ' ' ,'-
0.88
-1.08
-0.73
1.73
, " ; r »\
-0.50
-1.53
-0.23
'"'--' * * f-
-3.39 Jl
2.03
0.53
-I.Q8 f
yyy :-»y~
1.83
* -'
-0.15
0.30
v'yyyiy
1.03
- , '- ' * "
0.20 _,,0-35
•-,-," t ••
0.00
-1.28
0.50
... A75,,
f \
0.00
>- : '-"„ V">- ,V ---
'; -'' '
-v" -':-;';-"' '> ;":
0.15
-1.13_ _
'/-' >% "-V ,* ':
0.65
-0.60
'-• '"?-!- V '*
0.15
, ,-, 'V-'-'v' *'-
f'\-/\X-- *= v
-0.95 ,^-0.80 _ >(_%
-1.65
"• ••' . ' ' vv\ f \ "* y
-.\ """ •./' ','"'•'• " ^J^ -M-
-1.03
-0.47
-0.17
-0.20
-0.40
-0.10
IT s Above
4 = Below
-1.51
i^-X^,;^:>'^
-0.88
-0.33
-0.03
-0.05
-0.25
0.05
control limit
control limit
-------
ESD-LV Performance Evaluation: Blind-A, 21-Apr-1998
19/30
Radium-228
Lab Res. 1
Exper. Rng anal Normalized deviation
Res. 2 Res. 3 Sigma (R + SR) Average (grand-avg) (known) Tag
FJ
FN
GI
GQ
GZ
HE
HK
HL
HP
I
ID
9.7
14.2
12.3
8.6
7.4
8.8
9.9
8.5
9.8
8.5
10.1
8.2
6.2
9.5
V,'l3;3
r*v-:3,v '
8.8
7.8
9.5
9.4
9.3
JE
JG
JM
JN
JQ
JS
JY
K
KB
KT
KX
L
LE
LF
LL
LR
9.4
8.8
9.1
0.308
0.282
0.334
0.437
0.796
-0.18
-1.05
0.13
-0.10
-0.98
0.30
10.2
13.9
14.0
9.2
13.4
13.4
12.2
13.1
13.5
1.53 0.770
0.40 0.205
0.32 0.154
10.53
13.47
13.63
0.78
2.99
3.11
0.93
3.14
3.26
ft
It
10.3 8.9 9.7
v , "• .O"-" \ - ^*\™ s^v" "^ " t \" s" ^ \ ^ s " "• <•
< ;'''- :~~ ' -' -: - -; ^^^Vi%^^ -':'' '^ '•"'
0.70 0.360 9.63 0.10 0.25
NH
11.1
• = No data submitted
0 = Insufficient data
x =
TAG SYMBOLS
Determined to be an outlier
It = Above control limit
U = Below control limit
-------
20 /
30
ESD-LV Performance Evaluation: Blind-A, 21-Apr-1998
Radium-228
Lab
NJ
NK
NO
O
OB
PJ*
OH
!~O&\.
OY
P
PB
pi)
PG
PM
PW
Q
QM
m
QT
QU
QW
QX
QY
QZ
RB
RD
RG
RI
RK
<,
RP
RR
R0
Res. 1
11.5
8.0
9.4
' '"',< * • "'
' ., * ,
' * * s , -
' ' ' '' r * " ~- ,
, y •'; r-<;
7.7
9.4
, :,,., s ,. „; -
' ; *; •-
10.8
10.0
- - - • ' ;' •;
8.6
12.4
8.2
10.2
;* \ ^ - " .. <•/ ' \
; -•;, ,f -. -
" -- >"^7;ix\;
•• v ;:/i'^.
-- ,191.6-, ;t;
Res. 2
10.0
9.0
9.6
ff; ,**,'*i : - -
v^Y/^ -
' '•• '' ' \ '•£>;*
^-I'.v/'A
8.4
9.6
•- " ' ' ;••
"<• '-.Xvv,-
11.0
9.1
V- -•: •
?>.^^-s:- ! ;1;A;
8.9
12.9
- '•'< • ',.
•• •" %^ ' ^ •« ^ ' ;-
-,-,- -
8.5
'' t
10.4
, *- ' ! ' - ' *
t^i^*^ ••*<*•• ' v'5'™^ ^ ...*>
\ %'>- /'' ^ '* * '*-
rv^.3'6jk ,"'-",
X1- '* / * ''i^** "•/ ^ V ^ '*<''''*'"
>-V\f'v;- X /^'^
^^ifelfti;
^>2i^-i|4^::
RJBl ~,':,V": '•- ^V?"4SSi&^$:
s
SD
< .»r ^-. ..
'"" SJB-X
' fltt*
- S3^J» ^
SI
i ^gfv-.
iJStiirS
SM
^filtf '
, BJXH^
so
SB
• =
0 3
7.9
7.6
v"f v;?^/1^ c?**^""^ "Sf
"f- ••"';' ''^^v-% ,>*'
" ^ "-'"'" ", \*$$"'
j '^^ •• wf-'-./* ""V^y.,,.;
9.1
r^T xV11 " '•>v*v ^ x
^ ''*J -°- * r^^S?
10^0
^5^ '•;>j;,,-!v:-^..j;;
^ -- T •• '^ ' „ **
' ' 'l:\*'*-s
\
7.9
9.2
" %'^v^^*-?'<5[£;5'^5s'ls<*s
^fW\ Xt^^a^^^A/
/ V^' ^^?| fc
* \y V*' '^ '^/ '^ t"^ ••'^^^
8.2
,? W i ^ • > ' % ? ; \;'^SA'' '
;- <: v" i*'-^. '-'~ ^.-jtV'-
9.9
ITl^'^*^?1^**^^'^
-.-- v & * v ^ iT- / s \vls ""
>, ' ,- '^vv s'
--;>;\->,, •>>>' ; -i"
Res. 3
10.5
''••
10.0
10.1
' ^ * ••••
•. "''•'''/
'' ;"'
6.9
9.8
\. •• .
10.6
10.3
" f^\-f s r
""••'' \''v' ' \ •-
8.8
13.3
8.9
,\> - -^
9.8
•fiv^ ^ ^ ^ ^ '•
t ^ -. t ^
'•• "\ Ow*iw
^ "i %" ' ' * %
''^'.-•f^^-V.
"JUHJiS"-' '"
'i**,; iiY''1^
8.0
10.8
*^*'I'J'X(OX5r-'^1'
x'* ? o'vV,^ ^s^ ' t
t^V^"'^'
Vs -.-• "''"? ^ ''
7.7
^*^ , ^ ^ ^ -
*^** ""'"-'" -
9.7
vr^ - ;* -
-.? ^'o. •••'•' ., ,
X'.''V" '
"• « "• % X ^ /
No data submitted
Insufficient
data
X 2
Exper.
Sigma
0.76
•• ~ ,
1.00
0.36
* ,
0.75
0.20
- '
0.20
0.62
•- ' " ~-
0.15
0.45
^*'^
' ' ' f
0.35
0.31
^^v-.^^ f
A>
"-,-''"'2.02 '
' S' \
••?•••, "• "~ t '• 'A
"• *^^J Q^t
,••* f J *
0.06
1.60
f£< * * ' •. '<'•••• •" '
\'\ -^"'.. *«% " ^ "<•'
„'* =- '* "' *s
''iA'""!.''-. ' ' ' •.
0.71
0.15
" 5 \ ',
-. >
Rnganal
(R + SR)
0.385
0.514
0.180
5
:.:
0^385
0.103
0.103
0.308
: - j
0.077
0.231
' ' '• '
• ;'! "
0.180
0.154
,
% ^ ^\ ^s
' '
0.976 !
16,118
0.026
0.822
S- ' ' '' ? "'* ^ '
" "•"' f'f ,
: •• v, I
0.360
' *
0.077
Normalized deviation
Average
10.67
9.00
9.70
"*' s
-- ' ;^ ,, - ' 4
7.67
9-60
10.80
9.80
8.77
12.87
A
8.53
10.13
, J
29.40
"• -.-.-,
••'•' •:'* ,
176,83
7.93
9.20
' -• ,
* ,
8.33
' '"'
9.87
-• ,'
' */* ^ *
TAG SYMBOLS
Determined
to be an outlier
(grand-avg) (known) Tag
0.88
, , > ' • ™<"-- f ' ~
-0.37
0.15
" •• ._ ••'•'*• s •(••> •• t
'"-:- '
* ' • ' ,*'•• '
V/l * , "•' -;'-;x'c:
,-.->', • . "
-1.38
0.08
'
t
0.98
0.23
,v~ *:-,: ..} - -. '=-
-0.55
2.54
"" "
& ^ "" ' % "• -f ;••
-0.73
.•".--•• ^ ,-t - ^ ^ ;
0.48
\ i
\^V> ••' ^t O^ ^'•'^V A%>*
V ' t
';T 14.9V >r*
' < ^ ^ ^ •> -. ^ '*•'•< ^
•• •• v '" '"
V^ -;,V?¥%^V
12^02, ,, ;
•>; , : r ".''-}y
-1.18
-0.22
,.',•--">-, , -' -",;-'':- -'/>"->'.
'.' ' ;s^','', !''''<':~-'' ^
' , % L ' •*. \
-0.88
, ,;, ,,' V, '., , ' -<\
'"*£'""':.,"'; V^- -t.-','i"JS
0.28
\ f. ^, ^ '•, *<.% ^ ^ ^ W,^
•- ^ , ^ s " „ "• ^ __"" ^s ^
•• V; * •"<••-'
It s Above
li s Below
1.03
"*•-,;- ......... ,.# ..V
-0.23
0.30
""; {"-'/ v *",','
-, ' ,v- , •'-.
X ''. I- *''!
V-- " '^' /' *-;'-'
; ' ., / ' • •
-1.23
0.23
.*-"'*
• '; "- . ,• '
1 • /"''"V \v
1.13
0.38
'T;.V'"\^v>v;
-\i/i^^ ^
-0.40
2.69
' - ' ••„•'
; ? -
; >% ' ;' '•
-0.58
\ ,„.»' ,
0.63
'- / f- ;' :* • „
7-'^*A;;v//-* ''s
16,14 ; X
/^/. •..-. tf :•*'•: f '
- s;% ;„" ' * *
$ ^^sv. J
.26.16/ - -' x ' ';
v«-- ,*'/ - "' »v"
-1.03
-0.08
v-^xXv- r,^ rvvO;> v^x ^
^^^^^"^-v'/l;
* i ^ ^< "" "s %' •," i-.' sV
-0.73
\V, - <'C/' a ,
**'/ ', ,**, w'i ' ' *
0.43
",t-\ >'. / \\'£~' ""
£ ^ " ^ "5 . \ ^ " ^ ' *
- . I -
->„-/,/•;--; ,->>• ;
control limit
control limit
-------
ESD-LV Performance Evaluation: Blind
-A, 21-Apr-1998
^
21/30
Radium-228
Lab
SS
SX
sz
T
TD
"' *¥*r
•~''M,lt -"
TN
TQ
1 rtftcj
& ty''
TU,
: ^
u
>% UA?
UK
.UM
UP
UQ
UY>
VA
" *Vtf**o.s
V ^^\
VH
VI
VJ
VM
VO
VT
w
•••we*
WH
wo
WR
ww
X
.*A'*
-:XC;;:
> * UH-I S
•s JjjJ^x
**^^iiY
! JUT, ,
ixiv
^ July'
s S*""T *- _
jv jtjt^v
XL
XM
•;mj
x%^/\^
s i,v
--XP?
• =
0 s
Res. 1
13.6
9.1
12.0
9.6
7.2
"X •."• " " "
\-"
11.8
8.7
x' -. , \ - • ,"';-"
' - -^ *' v' ,''-v-
Y , fXr\x>^
-\v:-:;-Y^
7.7
*~* '\\ ^ :'-.V"-f"
"* "• s\ l • o\- ,. N
v v s xx ^ ^ "••
10.0
10.5
.:. ' "''^fV
14.1
0 •> " ^ v' V * '"*
7.5
12.5
, L v
'" • - ^ ::
4V: i^\xl%;:
8.7
8.8
,/u. v^-^^vw •- V, <. VIV.VIW4V..
;, -j-VfxSY
,,,.'!'• VYr
8.4
Xu^TSpi
>>c-%Vx:i^^S
"- - ^ c-~ -.X1* v^y^Y*^*
v ^ V ^VN N^" ^v^A
.- « XV s N ^ % ^ "^i^^NS^
•• > " v x-- - Y^"1 ^
c- '\*^^^?^^
^ '^%^;-
^\ x ^ss\y^>vsi- ^>^
s *" -. •>v ' ^ * l "* ." ^vV* ^ ,s ^
I " X^*^ \X;^ X ^X\ ^ ,_••
8.1
_ _(ij^9.1_
' '~\ ~ v-^1," S^\C. v5
^ •• '^^V^x^^x > 0
1 ,."-\'*, ,\ ,?
*- - 4-^'t"-
Res. 2
10.5
12.8
11.1
10.4
9.3
Xs: «•- s o " ; v v!; ,;s '
„ ,>^C; ,!•, r;^cx ;, x
8.2
7.6
% ^\*v*C& ""' -
* 5 '•' " ^ s ' *• ^ ^
,Xt>;UV ^ * "$>'f^
f4^5^ti;v C;
.« ?-8. r ~
^^^.f'.r^^
^'J-'-SS^?:
rx-^\^it^
10.3
10.8
«-o*:::*:"\ %%>
13.6
*"•,"' ^x*1-1*-^ ""*** ^J s
" "" * ^ v"" V
7.4
11.3
- \:
>s > *",',' -
\,'N-V",\S - sl" r"'-* ^
- ;*\^^^;|^
V.l'"'"
5.2
(-.« , ; lVjswjii SWVSV.Y^MV. AW,w^syA,A
%;^j^;SK'
,\Wvt^»iv*^Y s-^' '
^\M VX~ - 'v x, , \x \
6.9
|^X«;S|iM|v^|,
X^^^^^^^^^^^x1
'••"''^'V^^Sy* -^ 'x^v ^^^^'^X
i*''- v\* *^>NV* '•SkW's^^o'iC,^
^:^l;§,£J^%i:ivV ' ^ ^
^^^fy^^
^|^t'^,\s'\MV!/^i,VS
'vV^x' ^^t^St-K^
s % s vXA Xv^,^*\X^ > ^?V^ ^ o?^
8.9
w^..8L3
^^^.^^'x v v VX X^^x^i/Xx
%^Vx.^u-s ^x1
x\x ^ -x^ x,*. v; Xx^o ;o v v- VV
\Jxs;,>Y ~!t^,V;%' -Xs;
>-';:' i^'ri^i^t
Res. 3
9.1
8.5
13.7
11.3
11.4
*W--!r - ,
\V\ ' ' ,-x - ;
8.5
9.2
C^ *^*' ^ v
•.""• ^S ^ V s N *
^x?»-.i-\.
^JL2_^
-y-v'^;\
-'1^1 1 y:>.
5 *^ " ^ " ^
10.3
10.0
U-..V- /-'
12.5
% */
6.7
9.1
Vs^ % % o^ t -l
'•• t l.^x'-'-
V^-f ,T '•
vS'S1^
v.-- -,y «
**'"?.8 ""
7.7
rtW«js\ vvs-,cjw. s •,
- ^X***^'- s
^- v>" ^^
;>^,^^
8.0
iy/-v\
^lC;\^xx!r\.
i\"Vy.* S*V ^ ^ "Y
xYst ••X**^r ••
•?^v*Jii^X)S''«.«.^'i^''> v* v
?rc't^i%v- T
^yx-»-~, - ^-,
";.*v:>-"
0.26
X -, " *" ^
- - . "' ' X
0.17
0.40
^
0^82
0.44
1.72
/.i\-:-
X^x %t ''^ \
» •' '-•' ?-:> '
0.46
1.84
^ s s u^u^u SM SS\^
,
\*V ;;^"s^
0.78
•!i '• • %> * '
\^V \; ^ ^^
% s
% v v * ^ ^ v C v\
••^^ ^\V"- <- '
>' ' ,^\V; ' ; °- -
^ U«,
V--J>S, - . ,^;>'V
X \ "" V' '-* ~
^ UV ^ •• ^s "" "" js"" \
0.66
i-x0.15^
.Vf^"i^T^
*N O-v " "* ^
^ ^"' ^ \
Rnganal
(R + SR)
1.296
1.199
0.668
0.437
1.150
•'-.•' _^
0.925
0.411
x>,-^ •' 7 *- '-•.-'."• ;
,\"~ *•''• :„•! V-"-
,^* •:•'•" :fh>:-
0.128
' Y
0 *^
0.077
0.205
^ * % *';••
0.411
< v
0.205
0.873
/:" '; Y;'"- : s'
''-, '•••
0.231
0.925
^ ~i \ ^ wv*1" \ ^ v, •. w ^
^ ^ ^ s
- - •. - • » ,
0.385
ts sx^-.>s;
^ %- ^ ^Xx
^
•. "\* *' \
^^^ ss^
\ *^
"^ X , % ^ , ^, i^
*"" *. •.
0.334
0.077
- "•'' . v>:\
/' \' «\ ,
Average
11.07
10.13
12.27
10.43
9.30
' ' -v,^;^"
!«*> ;5fr! l-!"!x->.-
9.50
8.50
*.-,x- ™ -, \~
^ * * ° v
t- -;"-Vf^"^ >X!V>-
,'s - *'"' ;^;~
% ' sX s^
10.20
10.43
V xx^,^-;-
13.40
V v '" N 'x" -^ s;s- s^
7.20
10.97
>
•T^YY
• - \; ;:\w*:
• - , ,"„,-"-. X"~
^ ^"X; u ^^^
8.20
7.23
% ^V,A;W^ •. VM.IW.W t vfvv.
'°>Y~ , .v;.
7.77
;-VV«i^V
" "" o.™ " x ^x%xxo
^ ' \ s ••
< X^ s^% ..^ 4 iv<.
s ' " V '"-'
s ' NS ' V^ ^V^ V^*
"- >:^Y!Y ~*
~~^. •• ,"S*^''x "" X
8.80
9.13
'-^> ^^
' v\\^ ^v\x"
, x ' ' ' ~\ ,
'•- -Lr1-""^
TAG SYMBOLS
Determined
to be an outlier
Normalized
(grand-avg)
1.18
0.48
2.09
0.71
-0.15
»' (™h " * ',\, -^ ,
x\\i^ ? ,-f,.' ^\^
0.00
-0.75
^S^'-v'-XV -.<5 ' \X
X\ v" ' ,Vs X-XX,*', 'X^
;>;\->=\^> "_-,
,***- ?!' \K'V-
-1.20
~Y;|^^^Y'
;'^W^; V ;
:/^^ix^r5^
0.53
0.71
XY ' v' 1^-
2.94"
Vi;^'"-'' X^ * ""- 'Iv-.x''^ ^ '•
•. ^
-1.73
1.11
*;,//\x v,;\V~
"f'\ ^" " ^ ,
VT?>'rV '
J^f <'V- 'o^ ' V A , ^ %
\V° - > ^""i^
" -0.98
-1.70
%^*,^™ ww.ww.^ w. «.,
Y^7fi>^ '
-1.30
'i\v^Vs^
v\ .X- -..->,\
%Xv w1* ^ %?-"*v'Ct^%%
•• ^'''•^'•^^'•s'- v ^X1-
"•.-"• ^I"V -x "
,>;XXV'r^'
rX'"x- ^&'\^^i.'
X*-x- '' "V"1 '' xv if "
1^\^''^'.X \^-'1>'1J(\'* *% is*1*1*
-0.52
-0.27^^
xf^^'^p
' ^\V^s^' '\\ ^ .
" ^'V'-1!'-11
\-t:--^Y^\
deviation
(known) Tag
1.33
0.63
2.23
0.85
0.00
^^ -^ , ™ _v.y ,»»- ,. ,
j|X ! "-,(»,' ' \ •
0.15
-0.60
,!;-'C,,y • , ; \ v;r" x;,' ••
^s-™" v;"X ^ ~*''X''
^•;;t'>":X1>-1\-<-«- ;0
HV-T^:-:*.;'
-1.05
*O* ^ %^ ^w ^' ^v.
%* -'•''>,
;;^,.- > •/' ~?* -i
0.68
0.85
•.),.: -\« v: -.-•»
3.09 It
^ -x s- ^ s<-\x « •,• ,^ s
x l •>
-1.58
1.26
•-X ' s
: *
'"! - \ •
"" "* X v
.->v ^:>% ^«v •
';%; - &' -•'< --
-0.83
-1.56
^,u--v%A •- V. •. <• •. \ " % W Vft-
x;y,-- "' - ,»,%
Y > ' \ \ •- ;
-1.15
% \-". ^ l "*
"x^Xs" -s - ^ " ^ ,\-V
*" O v v A s "
" •• -. ^ • "* s ^ v *,
'•'* *^ 's,'' KV.,V ^.^ ^'
- ^'SVl „ 1N",.' _ * ^
'-^ "" '- '°»x:
\'.^1>- »- "-' V, »•'•'•''
"'.':- i " ; ^- -S
s *J •.* vX ' \^ v N •{\^*O
-0.38
-0.13
?-\ ' ^•'-•"^
- "" '"s"''. ' "• - "
' -V-' ''> ,\ •-..'•./
It = Above control limit
$ = Below control limit
-------
22/30 ESD-LV Performance Evaluation: Blind-A, 21- Apr- 199 8
Radium-228
Exper. Rng anal
Lab Res. 1 Res. 2 Res. 3 Sigma (R + SR)
iM'Vv^''' ^/'^i^-V^'l^'^^V' T;-'T ';•'"• '•" - ' ."•.-.
Alflft,> }. '•• s,J:\--' ,;* '•. <" ' ' •**%*•.*<•' , • v/;. * \ <
^ -T-.'r' '"' " " ~ •* ,v>"!;,'>;;V;-k~"*""" i-, "' >^1-'vv •••••-''< ' . ••••••••
:'XB^*< * ' '"!•-*">-* 'M>-' * •< --V '•",*•.'«'-'•; ; „
Normalized deviation
Average (grand-avg) (known)
-' ' /> , "- -- - #>- ; >fr^*?\ ,^ / ->-,-;- *';''
\'f •• \v" s V
t ' $ * •,£••- •• ••' A
^
Tag
i ~ ^,- •
• " •
Data sorted by Laboratory Average
Average Tag Lab
4.80 U AU
7.20 VH
7.23 WO
7.27 AK
7.30 DE
7.67 P
7.77 X
7.80 CA
7.87 BA
7.87 A
7.90 U
7.90 HL
7.93 S
8.00 ID
8.13 DT
8.20 WH
8.23 DB
8.33 SI
8.33 AE
8.50 TQ
8.50 CJ
8.53 QZ
8.63 AJ
8.77 QT
8.80 XL
8.87 DZ
Average Tag
8.97
9.00
9.00
9.07
9.10
9.10
9.13
9.17
9.20
9.23
9.27
9.30
9.37
9.47
9.50
9.50
9.50
9.53
9.60
9.63
9.70
9.70
9.77
9.80
9.87
9.93
Lab
EL
NO
AL
HK
BH
JE
XM
I
SD
EB
E
TD
EO
HP
TN
CS
c
FN
PB
L
O
BK
BO
Q
SM
MF
Average Tag
10.00
10.13
10.13
10.17
10.20
10.30
10.30
10.43
10.43
10.53
10.67
10.67
10.80
10.97
11.07
11.60
11.73
12.00
12.27
12.87
13.27
13.40 It
13.47 ft
13.63 ft
29.40 x
176.83 x
Lab
AZ
RD
SX
CE
UP
NH
N
UQ
T
JS
NJ
BM
PW
VI
ss
AF
BC
AW
SZ
QU
GQ
VA
JY
K
RK
RU
^^M
% responding labs Frequency distribution
10- - - - — ______....___ , , _ .
••- •••••-
: i if liiif Illif .
-6 -4 -2 6
- "j fB
+2 ' -»4
1
+6
Normalized deviation of the mean from the known value
• s No data submitted TAG SYMBOLS ft = Above control
0 s Insufficient data x s Determined to be an outlier li s Below control
limit
limit
-------
ESD-LV Performance Evaluation: Blind-A, 21-Apr-1998 23/30
Radium-228
% responding labs Frequency distribution
10
O-*—r
-6 -4 -2 0 +2 +4 +6
Normalized deviation of the mean from the grand average
-------
ESD-LV Performance Evaluation: Blind-A, 21-Apr-1998
24/30
Uranium (Natural) Statistical Summary 182 Participants
The known value of this nuclide is 5.0 pCi/1 with an expected precision of 3.0; the control limits
are 0.0 to 10.2; the warning regions are 0.0 to 1.5 and 8.5 to 10.2
82(45.1 %) Failed to respond
5(2.7 %) Outliers
Statistic
; 94(51.6 %) Within all limits
Respondents
1 (O.5 %) In warning zone
but within control
Non-outliers
Mean
Std. Dev.
Variance
%Coef. ofVar.
% deviation of mean from known value
Norm. dev. of mean from known value
Median
% deviation of median from known value
Norm. dev. of median from known value
6.93
9.81
96.17
141.41
38.69
0.20
5.07
1.33
0.01
Grand Avg 5.08
0.82
0.68
16.20
1.56
0.09
5.03
0.67
0.04
5(5.O %) More than 3 norm. S.D.
1(1.O %) Between 2 and 3 norm. S.D. '
; 91 (91.0 %) Within 1 norm. S.D.
i
of known value
* 3(3.0 %) Between 1 and 2 norm. S.D.
-------
.25/
30
ESD-LV Performance Evaluation: Blind-A, 21-Apr-1998
Uranium (Natural)
Lab
A
AE
AF
AH
AJ
AK
AL
AP
AR
AtJ
AW
AZ
BA
BB
BC
BG
BH
BK
BL
BM
BN
BO
BS
** "„
C
CA
CC
CE
CJ
CO
CI*1
• eg •
ex
D
DB
DD
DE
Dl
DO
DT
DZ
E
EB
EL
''Tfert'
M3t\J
Res. 1
4.9
5.1
5.7
4.9
5.2
6.2
5.7
•\ f
4.5
- ''-' '•- X- /''" ;'
5.2
5.3
5.4
4.0
5.1
*/' '. " • '
6.1
5.6
5.6
3.1
4.6
4.6
5.2
,' , '**'S -"
5.3
4.5
. 3;5 ..
•,£'•'". \ j^"' <:?'-
;;-;/; 'ggjjr,
5.7
4.8
4.4
-•',-• •
6.0
'' ,' ;V~' ' .'',"-
5.4
5.0
8.3
5.3
4.5
4.0
>\ •. !> ^ "
Res. 2
5.0
5.3
5.7
5.2
4.7
6.7
5.6
- "* '/• , * '
4.4
^/ x^:?.;'i"' 7-^f1-
5.0
5.3
5.9
4.3
5.2
s * "" ,<• ^\'f-
6.0
5.4
' ~ -"'"'. ' -
5.4
4.6
4.6
- :
0.29
1.10
0.40
0.21
0.42
0.12
" * "t"' " " \
/•• - ^ ^ t
0.020
0.079
0.059
0.079
0.197
0.098
0.098
0.020
0.059
0.000
0.158
0.059
0.039
0.079
0.039
0.118
0.295
0.020
0.098
0.039
0.079
0.098
0.020
,..
0;197
0.079
0.079
0.039
x. -
0.197
0.098
0.394
0.158
0.079
0.158
0.039
4.93
5.30
5.60
4.97
4.70
6.37
5.80
,
_-. > S '
4.43
..> ^ * s * j ^ "*"
5.17
5.30
5.47
4.17
5.20
5.93
5.53
".-
5.33
3.77
4.63
; _ - :
4.87
5.07
'*''! ~\ -"-'-''
5.50
4.53
3.43
' j j j -- ,•}
'^''"/>7.13
5.50
5.00
4.50
- !< , : . ,<
6.67
/ -1 \ ",-! '
5.07
5.73
8.30
5.07
4.63
4.07
* - "s ^ ' ' " *
-.' , -. ••''''
TAG SYMBOLS
Determined to
bean
outlier
Normalized deviation
(grand-avg) (known) Tag
-0.08
0.13
0.30
-0.06
-0.22
0.74
0.42
< ,. ^ , V.
w *•* s s
-0.37
V-^V 'A"-"':*;:"%
0.05
0.13
0.22
-0.53
0.07
' ;• 'V '-> -
0.49
0.26
^ , •
0.15
-0.76
-0.26
* ' ' ^ ^ "• f **
-0.12
-0.01
, ' ^ /"' C-.-S - X'-. •-
0.24
-0.31
-0.95
- , :'.V", - ' SS' -
-x- iB3& '"''
0.24
-0.04
-0.33
'?y:-;^''~'<;\I£
0.92
'>'f i\'\"'"^'^^'-'
-0.01
0.38
1.86
-0.01
-0.26
-0.58
V^v ",*'* "''- ," V-;V^
...•:...•: .-:.. \^...S.t. ...'.'
tt s Above
li = Below
-0.04
0.17
0.35
-0.02
-0.17
0.79
0.46
*
w •.
>. - v
-0.33
'".'V y:/.— rv?
0.10
0.17
0.27
-0.48
0.12
"V7,V ^ • ,
0.54
0.31
", , '• • ' *•'',
0.19
-0.71
-0.21
, , '•
- ; "\ . - •• •+"
-0.08
0.04
rx-'-^v"' »;,:
0.29
-0.27
-0.90
:'. ',• }, f ' ''' '* -
" ""' •"•. ^f "•*" \ >* ••
' JLtr it^O' %* ^ *" "*" '
0.29
0.00
-0.29
SSv:,r> *;x*\'
'p.96 ^
^~;CS^ ?'"*!>'
0.04
0.42
1.91
0.04
-0.21
-0.54
-, ** i ,\' !» - - v
...J. ,.'.'... .:.... :..^. '
control limit
control limit
-------
ESD-LV Performance Evaluation: Blind-A, 21-Apr-1998
26/30
Uranium (Natural)
Lab Res. 1 Res. 2
Exper. Rag anal Normalized deviation
Res. 3 Sigma (R + SR) Average (grand-avg) (known) Tag
ER
0.40 0.158
,,,, v x -
;, ,,-^A " '~ v
0.15 0.059
4.77 -0.18
0.039
0.177
0.039
0.059
0.039
"1.120 - 87.30 X 47.47
0.138 4.60 -0.28
4.77 -0.18
0.158
0.197
0.413
0.42
0.58
1.07
0.09
0.34
-0.49
0.13
0.38
-0.44
• s No data submitted
0 = Insufficient data
TAG SYMBOLS
Determined to be an outlier
ft = Above control limit
& 3 Below control limit
-------
27/30
ESD-LV Performance Evaluation: Blind-A, 21-Apr-1998
Uranium (Natural)
Lab
NJ
NK
NO
' O"
OB
OF
" f^^fr
:: OBI
OS
OY
P
PA
PB
PB
PG
PM
PW
Q
QM
QP
QQ
QT
QU
ow1
™™
QY
QZ
RB
RD
RG
BI
RK
HP
BE
BU;
RZ
S
SD
'•• £fe,-,
4.1
' * i^* ' "• *••'>
17:6
5.0
5.4
3.8
,v<, , , "
5.5
24.6
4.8
4.8
5.0
"•• s "
41,0"
5.0
- - * ' X ,-
-• >;, ,1;
4.5
5.8
* ' \^ "" ''' ' •>
•: • ,\ '? 'C^'-
5.2
2.5
5.2 ^
*^>r *'"'* \ < " ' v ^"v^
,- ' X -,"1 J'* ™ ^""'X' •
6.3
Res. 2
4.8
XxX-X"
5.5
. v /?/£"'..•
5.1
V ,>; ' ; '^j.J'^ -v^ '
J, ; - \^f- f „'••," ,x"
49
A-x;xXi>X<;
5.1
' ' V'V % ss *• -51' '
4.1
'\X x '"" ': 'V--*
^
20.6
4.1
5.2
4.1
-;« ' *-*- -, 'X- -
5.6
-•. - ' ' \ \
'218 "T
"x \ /:'„.:•-; ,
4.9
",\ / .'' •- -
4.8
4.9
" ;' , ,43 jMv*-"
4.8
^.•.V-V^'^
,^%'^ -^.^\\, .%,>''-•''/ *
,:^^^^t
4.7
5.2
' *^ 's ^%%'^I* °'iX^S"v
" w^ >f Jf ^^'vXV^i "-'^
iW" ," S '. <5^!--"-
v ^ ~;i;^;|,^<-''A^l':i
5.0
2.5
5.0
/ •• ;_ *,: '' v £$'•&/+'' ^
v.' "" "A^. "*< „' v V1" ^ ^ X\
5.0
' 's ••.',' ' • '•
Res. 3
4.9
' j> •-•-
_A5,,\
C ''''-'" • -A,
5.5
'' f ;•>• " ' "* '
4.9
-%?/:^'>
7.7
"',.\:'<"- '
4.0
'v'7, J"-
"- V--, - •'
20.p
4.6
4.8
5.4
/ ^.•-•1 t .- ,,,. v
5.3
„
28,0
' / •"''''
4.8
;"•>* ;,, " ;'
4.8
„ ,,5,:9,,,.,
-',*?-v/'-*
:V":45;0::"'
4.9m
1\:^;'^-
ISSI
^Sx^":*
4.9
5.3
' S>L* *^ -.*
^ " ^ fJ^**' -^4 > "" '
0?W^"-t
5.1
2.6
„ ^?..
''^r*--^-'^^" ^^ >
-.•.\ 'A''%*
6.5
• s No data submitted
0 s
Insufficient
data
X s
1
Exper. Rng anal Normalized deviation
Sigma (R
0.15
1.00
N / s ^ .. •. ' ' \
0.23
. -, -
'! ^'\;y ' • '
0.12
'% " '
1.42
,- ' -
0.06
\:- /-•' . :
1,59
0.45
0.31
0.85
• ::, -
0.15
", '
117
t*-' ' ~
0.06
"-
0.00
0.06
r-rY - -
2*01
0.10
' ' ~ '
^f,v :•;';; \V-V --
0.20
0.32
^ ^ ^ / ' •*.-.*
•, i*-,-,v '" ^V - > ' '
yV<£V,V. -'\'% % '
0.10
0.06
0.15
jjj v *• ,. t
C* \ s"' •• ..
0.81
+ SR) Average (grand-avg) (known) Tag
0.059
0.394
0.079
s «.
0.039
/•
0.512
0.020
0.591
0.177
0.118
0.315
0.059
0.433
0.020
0.000
0.020
0,788
0.039
0.079
0.118
0.039
0.020
0.059
0.295
4.93
5.50
%', , " -••'-- ' *"•*. --', '
5.23
'• - , 'W," -
4.83
'••-' -, ".^'. ^V
6.07
4.07
19.40
4.57
5.13
4.43
t •> ^
5.47
24,13
•- j -
4.83
J
4.80
4.97
v. •- '-v'-?
- • - 43.10 {
4.90
\ ' ' /''•''•-'--
'• ;,\ -, r:
4.70
5.43
' ^ ^^ " •* '' -• -.
' - :*"'L>.
5.10
2.53
5.17
! '^ "" J "; -
':•• s
5.93
TAG SYMBOLS
Determined to
bean
outlier
-0.08
-
0.24
. > ;-~l" '-p;*':
0.09
-; T ,;^
' f'\ •"•-::'
0.14
-. -;1 -:>- •'•'
0.57
-0.58
'"-'C'..11 '"'^""--
8.27
-0.30
0.03
•• V , *' "'s' '
-0.37
' •• ^ '•••C'S'"-
0.22
iioo
" \ "
-0.14
-0.16
-0.06
\'%--;T'-^-
21.95 ;: ."
-0.10
\ "• •. '
' vV-'-V-' v '
'"-"• \ ';5':V,
-0.22
0.21
^ t, •'*;•.._''•.- 't
'/ ^^ ^ ^\
0.01
-1.47
0.05
"• , \ , '"*'• "••'* (' - f.
•• "• -. 'XV ' '
0.49
'•' V
IT = Above
$ = Below
-0.04
';-^;™7:s *" -.
0.29
^^r ?•$••»•
0.13
>\ --"'''- * - •
* ^ \ ^ '
* *"A* •• -,•',. *' •
-0.10
. -;-'>,/;,;/:";
0.62
x ^ ,,,i -•
-0.54
''//V^'^X
; , '•'-•,- ' *-
1 \ ,* '
8-31 •. x.
-0.25
0.08
- : •"'."' * -, >
-0.33
,^,,,-X- ':*• '
0.27
•- <•• • '
"S "} " " • -
ll.OS x
s % s ' *" ' A--
-0.10
'" -X , * "',
-0.12
-0.02
r7?;!Kx'*'':
22,6bxKx " '
-0.06
_. , ^ ^^ ^ i
- X-('v * J
1 ,;"?CJx-*f-y
-0.17
0.25
' '^ **'%''^'*^J! :f ^A" ^
*, t ' *.'}-> * ^ V-*
-^~:'--^-\'i :- ,-« :-'
0.06
-1.42
J0.10
y ^*^->\l , v
"/ X"" •. ^'"v.% ""'*/ > '
0.54
; \;><-:' * '*
control limit
control limit
-------
ESD-LV Performance Evaluation: Blind-A, 21-Apr-1998
28/30
Uranium (Natural)
Exper. Rng anal
Lab
SS
SX
sz
T
TD
' ' '''wtb1 ' ""
'I'Jj ^
i.TN'
TQ
r-TS .'
TU
•™->
U
- ^Tjk' *
•;•' -v
''JCIK\
;;;i!UM
~UPm
.,-IJO4
UY
VA
VC
VH
VI
VJ
VM
VO
•> 'VT''
W
WIP
. ••• WJu ,
WH
WO
WR
•••••••• ^"^
Res. 1
5.0
4.8
4.1
6.2
4.9
""" ' *• * "• "•
^ ^N - ^ s ••"
* ^ s ''•'••':'..:' "\,. " J^"
5.3
, ;-, v> JH^C T;
5.4
7r?^i^;s
5.8
• ** * ^ ^ *Vx"°> ^
„ s~- V>y~! ;v *
, '"* \'v !' '-if;
,,\, n% , ,xx>\»><
_4.8_
^ «'*;]. _ ." °~,r
• •„'-' ,'V>7
5.4 _
•^- .. C-x- ^vX^
6.0
5.4 _
, ' ^r\v
" s «"!-^
5.6
•• •••,•. ,_.•.,.•.•...
\ X- ; \ssV-~v>
"5.i"'
. Yv.,,^^? j^,™^,.
""£'*! ^ T^V^xV
4.1
5.0
5.0
^X" T1"^ vt?v , VX* - •• s x ?
Res. 2
4.9
5.0
5.0
6.2
4.8
. ^ ^^xX,^ •- '' ; !;
'fV 7'? -!,.-,^ '\
5.3
^T,>S>^IA^
5.1
^:^v^p?"
5.8
x\ ^--\COV ^V^V\ s ^^
»'-V*X\-s". -.», ,iXx—
^\\,'^y\ ^',*> "
,.^1 *;?»"J
~V%---- ": T^ *^X\
:\t^.".'< -•~^T'i!;
4.9
,4x\,^,x % '-A <.;••
5.6
5.3
* •. ?V^--":"^~° •• '-
•" /v,"^'^;- ^
4.8
\\\%% ss ^^^^^^ v
r 'x v*-; --"" *~x &
5.2 " ^
' - ' f !Jfs^T5: s' V ™
^ IS^Xi?;''?'* ,u/ ^"tS
4.6
4.6
5.0
•^ \VV-. V\^«>\^\^)i'?!Si*?'$
Res. 3
5.1
5.2
4.9
6.3
4.8
^ •. -. ^\
* |
5.2
NX-x/.-v*,
XX 4" - ^
5.2
.^jfT-r-
5.9
^ % * / ^ '
{><.-^x*. ,-o
»-/''•», s^- -V
,-'.\; - ''
ll?;,?^
s ^\ -.%%'*'' x- -. ,-..
r'\,":l;v;^\
6.4
:;l^v---'-
5.9
_.HL
\s-- "^u.
4.9
\ *• *••• , ^
'-f^Cv^' \\v
5.3
ss-x-xo'1"5!;''"""""''
f'v ^ «.XVX^ ^;
fc^lSISts "-
5.1
4.1
5.1
*<••.:•? SoX-Xf^Xv"1^
Sigma (R
0.10
0.20
0.15
0.06
0.06
^\s^ "" s ^ % ,N^
0.06
•^>\, > - -'. V
0.15
0.06
i"S % X ^ ••" \ \^s ^ v ^ ••
sO; , \ , " 1 ;
\ s
0.55
< ^-^4 . " ,-,- , .«
V#- .V ' -\
0.76
\X;sxs-\,,- - -J -"o
0.21
0.21
"" iT^ •-
0.44
0.10
^Nwss _,. «%s •. ^ ^ X^-X S
€"\- x*^ -" \\^-\1' v\x
0.50
0.21
0.06
•>" \ •,"*'• v <• -• o
'.-WW---V 'tr0^^fc?.^^^^^^^^Ki^^liu^^ ~v \ -
x
XA
XC
••jp*;.
.-TCB*S:
XI
TXJ
'•xXK'-
XL
_XM^
^XN^
^^^ s *
XO
.-XP/
4.5
9.8
•V'ie>Jp^
S^Sft^l
vNi^^i-'-^f^J*
5^3
.-f.^^^v^V
: r.-'^vH^x^1-
•"••"""YT"
^_vfj*.5
"** \^* fe^^*"**°*^
1 S i \ ••/, '"^N'^'X^X*
•/•> - "p; :,:> vl^s
^-^iiJSi?
4.5
6.6
^p^^f;^)1-
llllli!©
»'^'S ^\»;^ ""'-',
* 5.5~
r^^v^V^'"'
"•"-fv'Sv:^^ >-\
'^"^g""-^'
^_4.6 ^_
3* ixt-V\^ -Vx : ^ ^"-'^ ^
X1* XjvV1'*'5"'vO'i' ^iV^N •. s"i
S^^j^^r
\^V?x^.'l
4.4
9.3
.-->,"--N"^
s s"s
5^ -\: ^
'
5.5
•> v.\\'-; S!;' ' -,
'-V'>;C;£v,/
'"5.6"
_^4.5^
"^ OivJ ° **S
s "• „-,•• ".^, <.
^5 ', o-- ,"v - ,
0.12
V\v"' ^ - ,' •* ^; '
- ^ ,\"% ' •";-'
0.21
0.06
4 «Ssfs " *" % r^\" * ; -
* V V v J" •• S
JvH^-'-/ ' -'
>;~-\= •;'/;/ ' *'
+ SR)
0.039
0.079
0.059
0.020
0.020
•> "", ' ^
0.020
- -;-" y^-"'^
0.059
';v:ry^
0.020
Si% % ^ s
0.217
;x';;"V ;~>
0^295
- , ,
0.079
0.079
t "
0.158
0.039
* ^5 w''1'X C%s "•
^"\C1^'< Os^s* ••
0.197
0.079
0.020
*" •• ^I11 x^ \
"^ '- -\\ \"
0.020
0.630
- - ''v
0.039
^\;v: ~\
;>, _, ,^
0.079
0.020
''^ * \ %
•• %*"• %ti
""* ;f- \"
\-N;.x; ;cv;
Average
5.00
5.00
4.87
6.23
4.83
^
" ^ s x" -
5.27
"••\ x-^S'C
,lj-2?
; v^-f^xrx\p;
5.83
x ^ "\ ^ ^x%v;'* ;x\j^
>«- ,™'.y^ - '"
X\,v > " \
' 1 '. '~Nr-\-'
4.77
,- V1.' ^; ,^- -
. - \ : -\ -;• ;' -s
" \J5.57
\;;^':\?x
5.83
.._..5.23
"\c*^,V;\
'? - -*~>
5.10
5.20
; -; _ *-;;,^ ~~!'!\ ' -
5^43
A; " *"'' - ^ ^*
5.53
, 4.53
\-\" "^^^V^
s * -. > v •-
- ' ' C,-
VK~ ' ;'\"' -
TAG SYMBOLS
Determined to
be an outlier
Normalized deviation
(grand-avg) (known) Tag
-0.04
-0.04
-0.12
0.67
-0.14
s * ^ ** s * ^s
* ,' ' ' ,'
-.- *,-'; * - '-:_ '-* y>.
0.11
V-:^.~%AC>X-%;^<;
0.09^
V" v~ ' .' ;xx>fy ;;- £•' ™ ; - ^
0.44
^ o^X^* ^ X\\ x^V^^^ ^ -
;*^^^ ^x^ ,s ^ 1
^ ^ s " \ ^
^v * t% ss •-
-0.18
:> '#. c- ' '„') -' '^f
\-~ "''^ , - "\:~\-"
0.28^
t|f:v^-/*;--^, >v-
0.44
^_ _009
•r >?"x\v"v-^' -'
f °^~vV^\v's*v^ V
0.01
"• S ••'•'• %"" V K "•
- " " -"" -"V x- * *v
0.07
""^Cx-^"",''' ";TV;~ >^r-
"\ 'x***? CSxiJi?'"' ', V^'
-0.28
-0.18
-0.03
/ ^ ^ \%V ^ $^- Xs^"^^"^ "''•V""*
'"xvV^^^I^^'^ ' ~:C?
-0.35
2.01
;"> vy -„ ;^~,^V,4i
%!-" .,VV" -'-" "• '^
'- '"" \"A?i^ ** **'
0.21
'\rX; "f^;V^
-xk - /A- ' ^"«- us. f-;^
.. .,.. w^..
:0.3i_
V*S,,!, X\^ U^»\S^'S' 'V'-XV.
j * •* »*3* ^^^V \^ \ X s O^^
• '- -\;!-\v--'\t\ ; . ^rt,-"
- \\ ! : A-;^^>^
$ s Above
& = Below
0.00
0.00
-0.08
0.71
-0.10
-5 , ,
•
-• " '^v' »x '
0.15
s WV V- i ^ *
0.13
y "•""^V;; . v, ,
0.48
^ ^ v%^ *^
,- \0,V °^\,- ' v.
;"' X-- / -; *- -
T - - ; ", • •"
-0.13
•' \- \i:V!-* "
,l!v^v /•• ,
a33
^'Jly. :V
0.48
0.13
, " . ' - * \
. "To,- .
0.06
•, *
; -„- ^ *", -i '• •• \
0.12
';^\" XT\~ \"V^"xi"
"*, ' x ^"W'!"l, ',5'
-0.23
-0.13
0.02
v (- ^ v^fw % - y *• *4 v
- x'-'f \, -' - < • \~
-0:31
2.06
\ ";:;;:;c-i";
; ;^>_«y;
, "t'l-xv'V^ s "-
0.25
%^S'VV';K;;*^
i;:;o;-7x-^-v- -* ^ ., O1"1 * ^ ^ s
- 5 o-\ - \»;'-"
•-'•Vvv'>» -:-
control limit
control limit
-------
29 / 30 ESD-LV Performance Evaluation:
Uranium (Natural)
Lab Res. 1 Res. 2
;XQ •••:;' f '-.' >••*•.:• V^S
XK * :;*:' -V"'-'.V:V
Blind-A, 21 -Apr- 199 8
Exper. Rng anal Normalized deviation
Res. 3 Sigma (R + SR) Average (grand-avg) (known)
A '•$ -. ''* •• -1 / .. v
\ f''- ' ' ' •-
; -;-<- ;„ '" ' - /: :••'".. /
' -• •• \ '"'" •• -. ""^ X"1 "•• s •. '
1
Tag
* •
*
Data sorted by Laboratory Average
Average Tag
2.37
2.53
3.43
3.77
4.03
4.07
4.07
4.17
4.23
4.43
4.43
4.47
4.50
4.53
4.53
4.57
4.57
4.60
4.60
4.63
4.63
4.70
4.70
4.77
4.77
4.77
4.77
4.80
4.80
4.80
4.83
4.83
4.83
• = No data submitted
0 = Insufficient data
Lab
FN
SL
CO
BN
FE
PB
EL
BB
NH
QQ
AR
X
DB
XM
CJ
Q
JN
WH
JY
BO
EB
AJ
S
WO
UP
K
GQ
RD
m
HL
TD
QZ
OS
Average Tag
4.83
4.87
4.87
4.90
4.93
4.93
4.93
4.97
4.97
4.97
5.00
5.00
5.00
5.03
^ 5.03
5.07
5.07
5.07
5.10
5.10
5.13
5.17
5.17
5.20
5.20
5.20
5.23
5.23
5.23
5.23
5.27
5.27
5.30
Lab
JE
SZ
C
RP
NJ
I
A
RG
LF
AH
SX
ss
D
WR
ER
CA
E
DO
VO
SI
QM
SM
AW
W
HK
BC
TU
OB
N
VI
TQ
HP
L
Average Tag
5.30
5.30
5.33
5.43
5.43
5.47
5.47
5.50
5.50
5.50
5.50
5.50
5.53
5.53
5.57
5.60
5.67
5.73
5.80
5.83
5.83
5.93
5.93
6.07
6.23
6.37
6.67
8.30
8.57
19.40 x
24.13 x
37.13 x
43.10 x
87.30 x
TAG SYMBOLS ft = Above control
x s Determined to be
an outlier U = Below control
Lab
AZ
AE
BM
XI
SD
QU
BA
NO
KT
FJ
CX
CE
XL
BK
VA
AF
NA
DT
AL
VH
U
BH
SO
P
T
AK
DE
DZ
XA
PW
QX
CS
RK
JS
limit
limit
-------
ESD-LV Performance Evaluation: Blind-A, 21-Apr-1998
30/30
1
Uranium (Natural)
% responding labs
20
10
Frequency distribution
;;;;;;;;;;;;;; j
.. __•!•
-6 ' -4 ' -2
•
I
|
+2 +4
1
+6
% responding labs
Normalized deviation of the mean from the known value
Frequency distribution
20
10
_. _ •
J
il
„ ..in
•
r
•.. H i
-6
Normalized deviation of the mean from the grand average
------- |